diff --git a/ap/app/zte_comm/at_ctl/src/atconfig/ps_normal.c b/ap/app/zte_comm/at_ctl/src/atconfig/ps_normal.c
index 2d4c6b1..03d43eb 100755
--- a/ap/app/zte_comm/at_ctl/src/atconfig/ps_normal.c
+++ b/ap/app/zte_comm/at_ctl/src/atconfig/ps_normal.c
@@ -115,6 +115,14 @@
 	void *p[5] = {&timeinfo.time_zone,&timeinfo.sav_time,temp1,temp2,timeinfo.univer_time};
 	int time_zone = 0;
 	
+	//>>>sj.zhang add @2023-08-10 for systime NITZ sync enable/disenable.
+	if(0 != system("uci get lynq_uci.lynq_sync_time.lynq_modem_sync_time_enable | grep -E \'^1$\'"))
+	{
+		at_print(AT_ERR,"zmmi_auto_act: nitz disenabled. \n");
+		return AT_END;
+	}
+	//>>>sj.zhang add @2023-08-10 end.
+
     sc_cfg_get("sntp_time_set_mode", mode, sizeof(mode));
 	if(strcmp(mode, "manual") == 0)
 	{
diff --git a/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc.conf b/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc.conf
index 5de1db2..ec00506 100755
--- a/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc.conf
+++ b/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc.conf
@@ -163,6 +163,7 @@
         liblynq-qser-network \
         liblynq-qser-gnss \
         liblynq-qser-fota \
+        liblynq-systime \
 	"
 
 zxic_lib += "${@bb.utils.contains('CONFIG_TEL_API_SUPPORT', 'RIL', 'libril libreference-ril', 'libtelsvr', d)}"
diff --git a/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc_ref.conf b/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc_ref.conf
index 4201487..c12bcad 100755
--- a/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc_ref.conf
+++ b/cap/zx297520v3/sources/meta-zxic-custom/conf/distro/vehicle_dc_ref.conf
@@ -192,6 +192,7 @@
         liblynq-qser-gnss \
         liblynq-qser-fota \
         libpoweralarm \
+        liblynq-systime \
 	"
 
 zxic_lib += "${@bb.utils.contains('CONFIG_TEL_API_SUPPORT', 'RIL', 'libril', 'libtelsvr', d)}"
diff --git a/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/liblynq-systime/liblynq-systime.bb b/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/liblynq-systime/liblynq-systime.bb
new file mode 100644
index 0000000..0b417ec
--- /dev/null
+++ b/cap/zx297520v3/sources/meta-zxic-custom/recipes-lynq/liblynq-systime/liblynq-systime.bb
@@ -0,0 +1,64 @@
+#inherit externalsrc package
+
+DESCRIPTION = "liblynq-systime"
+LICENSE = "CLOSED"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=b1e07e8d88e26263e71d3a9e2aa9a2ff"
+DEPENDS += "${@bb.utils.contains('TARGET_PLATFORM', 'T106', "liblynq-uci libsctel", '', d)} "
+#inherit workonsrc
+WORKONSRC = "${TOPDIR}/../src/lynq/lib/liblynq-systime/"
+FILESEXTRAPATHS_prepend :="${TOPDIR}/../src/lynq/lib/:"
+SRC_URI = " \
+          file://liblynq-systime \
+          "
+
+SRC-DIR = "${S}/../liblynq-systime"
+
+TARGET_CC_ARCH += "${LDFLAGS}"
+BB_INCLUDE_ADD = "--sysroot=${STAGING_DIR_HOST}"
+BB_LDFLAGS_ADD = "--sysroot=${STAGING_DIR_HOST} -Wl,--hash-style=gnu"
+#Parameters passed to do_compile()
+EXTRA_OEMAKE = "'TARGET_PLATFORM = ${TARGET_PLATFORM}'"
+
+FILES_${PN} = "${base_libdir}/*.so \
+               ${base_bindir}\
+               ${base_sbindir} \
+               /etc/dbus-1/system.d/"
+FILES_${PN}-dev = "/test \
+                   ${includedir}"
+
+FILES_${PN}-doc = "/doc"
+
+FILES_${PN}-dbg ="${base_bindir}/.debug \
+                  ${base_libdir}/.debug \
+                  ${base_sbindir}/.debug"
+
+INSANE_SKIP_${PN} += "already-stripped"
+INSANE_SKIP_${PN} += "installed-vs-shipped"
+
+
+#INHIBIT_PACKAGE_STRIP = "1"
+do_compile () {
+	if [ "${PACKAGE_ARCH}" = "cortexa7hf-vfp-vfpv4-neon" ]; then
+		oe_runmake all -C ${SRC-DIR} ROOT=${STAGING_DIR_HOST} OFLAGS="--sysroot=${STAGING_DIR_HOST} -Os -mfpu=neon-vfpv4 -mhard-float -Wl,--hash-style=gnu"
+	elif [ "${PACKAGE_ARCH}" = "cortexa7hf-neon-vfpv4" ]; then
+		oe_runmake all -C ${SRC-DIR} ROOT=${STAGING_DIR_HOST} OFLAGS="--sysroot=${STAGING_DIR_HOST} -Os -mfpu=neon-vfpv4 -mhard-float -Wl,--hash-style=gnu"
+	elif [ "${PACKAGE_ARCH}" = "cortexa53hf-neon-fp-armv8" ]; then
+		oe_runmake all -C ${SRC-DIR} ROOT=${STAGING_DIR_HOST} OFLAGS="--sysroot=${STAGING_DIR_HOST} -Os -mfpu=neon-vfpv4 -mhard-float -Wl,--hash-style=gnu -mhard-float -mfpu=neon-fp-armv8 -mfloat-abi=hard -mcpu=cortex-a53 -mtune=cortex-a53"
+	else
+		oe_runmake all -C ${SRC-DIR} ROOT=${STAGING_DIR_HOST} OFLAGS="--sysroot=${STAGING_DIR_HOST} -Os -Wl,--hash-style=gnu"
+	fi
+}
+
+do_install () {
+    oe_runmake install -C ${SRC-DIR} ROOT=${D}
+	
+    if [ -d "${WORKONSRC}" ] ; then
+        install -d ${D}${includedir}/
+        cp -af ${SRC-DIR}/include/ ${D}${includedir}/
+    fi 
+}
+
+addtask bachclean
+do_bachclean () {
+    oe_runmake clean
+}
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp b/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
index bee6e5e..9525e75 100755
--- a/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-call/lynq_call.cpp
@@ -808,7 +808,6 @@
        return LYNQ_E_CONFLICT;
     }      
     lynq_call_hungup_all();  
-    lynq_set_voice_audio_mode(AUDIO_MODE_CODEC);
     g_module_init_flag = MODULE_SWITCHING;
     lynq_close_all_urc_socket_thread();
     lynq_close_all_rc_socket_thread();    
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-systime/LICENSE b/cap/zx297520v3/src/lynq/lib/liblynq-systime/LICENSE
new file mode 100755
index 0000000..605b7ea
--- /dev/null
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-systime/LICENSE
@@ -0,0 +1,31 @@
+Copyright Statement:
+
+This software/firmware and related documentation ("MobileTek Software") are
+protected under relevant copyright laws. The information contained herein is
+confidential and proprietary to MobileTek Inc. and/or its licensors. Without
+the prior written permission of MobileTek inc. and/or its licensors, any
+reproduction, modification, use or disclosure of MobileTek Software, and
+information contained herein, in whole or in part, shall be strictly
+prohibited.
+
+MobileTek Inc. (C) 2015. All rights reserved.
+
+BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MobileTek SOFTWARE")
+RECEIVED FROM MobileTek AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
+ON AN "AS-IS" BASIS ONLY. MobileTek EXPRESSLY DISCLAIMS ANY AND ALL
+WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+NONINFRINGEMENT. NEITHER DOES MobileTek PROVIDE ANY WARRANTY WHATSOEVER WITH
+RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY,
+INCORPORATED IN, OR SUPPLIED WITH THE MobileTek SOFTWARE, AND RECEIVER AGREES
+TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO.
+RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO
+OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MobileTek
+SOFTWARE. MobileTek SHALL ALSO NOT BE RESPONSIBLE FOR ANY MobileTek SOFTWARE
+RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MobileTek'S
+ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MobileTek SOFTWARE
+RELEASED HEREUNDER WILL BE, AT MobileTek'S OPTION, TO REVISE OR REPLACE THE
+MobileTek SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE
+CHARGE PAID BY RECEIVER TO MobileTek FOR SUCH MobileTek SOFTWARE AT ISSUE.
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-systime/include/lynq_systime.h b/cap/zx297520v3/src/lynq/lib/liblynq-systime/include/lynq_systime.h
new file mode 100755
index 0000000..001edda
--- /dev/null
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-systime/include/lynq_systime.h
@@ -0,0 +1,123 @@
+/**@file lynq-systime.h
+ *
+ * @brief Sync systime form each time source.
+ *
+ * @author sj.zhang
+ *
+ * @date 2023-08-14
+ *
+ * @version V1.0
+ *
+ * @copyright Copyright (c) MobileTek
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <include/lynq_uci.h>
+
+#ifndef _LYNQ_SYSTIME_H_
+#define _LYNQ_SYSTIME_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef struct time_source_status
+{
+    int ntp;
+    int nitz;
+    int gnss;
+}time_src_status_s;
+
+#ifdef MOBILETEK_TARGET_PLATFORM_T106
+
+    /**@brief Set the rtc time to the system time.
+     *
+     * @param void
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int lynq_sync_time_from_rtc(void);
+
+    /**@brief Set the system time to the rtc time.
+     *
+     * @param void
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int lynq_set_rtc_time(void);
+
+    /**@brief Query the rtc time.
+     *
+     * @param [OUT] ulsec: rtc time, secconds from 1900.1.1 00:00
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int lynq_get_rtc_time(unsigned long *ulsec);
+#endif
+
+    /**@brief Query the time source status now.
+     *
+     * @param [OUT] ntp, nitz, gnss:
+     *        0: disable
+     *        1: enable
+     *
+     * @return
+     *      0 : success
+     *      other:failure
+     */
+    int lynq_get_time_src_status(time_src_status_s *time_src);
+
+    /**@brief Turn sntp on/off
+     *
+     * @param enable [IN] : 0  disenable; 1 enable;
+     *
+     * @return
+     *    0 set success
+     *    1 SNTP_DISENABLE
+     *    2 SNTP_ALREADY_ENABLE
+     */
+    int ntp_sync_time(int enable);
+
+    /**@brief Enable/Disenable sync time from NITZ.
+     *
+     * @param enable [IN] : 0  disenable; 1 enable;
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int modem_time_enable(int enable);
+
+    /**@brief Enable/Disenable sync time from GNSS.
+     *
+     * @param enable [IN] : 0  disenable; 1 enable;
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int gnss_time_enable(int enable);
+
+    /**@brief User set systime manually.
+     *
+     * @param enable [IN] : 0  disenable; 1 enable;
+     *
+     * @return
+     *      0:success
+     *      other:failure
+     */
+    int user_set_time(char *date, char *time);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-systime/lynq_systime.cpp b/cap/zx297520v3/src/lynq/lib/liblynq-systime/lynq_systime.cpp
new file mode 100755
index 0000000..6b7351b
--- /dev/null
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-systime/lynq_systime.cpp
@@ -0,0 +1,382 @@
+/**@file lynq-systime.cpp
+ *
+ * @brief Sync systime form different time source.
+ *
+ * @author sj.zhang
+ *
+ * @date 2023-08-15
+ *
+ * @version V1.0
+ *
+ * @copyright Copyright (c) MobileTek
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <include/lynq_uci.h>
+#include "liblog/lynq_deflog.h"
+#include "lynq_systime.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#define USER_LOG_TAG "LYNQ_SYSTIME"
+#define LOG_LEVEL 4
+
+#define LYNQ_SYNC_TIME_SECTION "lynq_sync_time"
+#define LYNQ_MODEM_TIME_KEY "lynq_modem_sync_time_enable"
+#define LYNQ_GNSS_TIME_KEY "lynq_gnss_sync_time_enable"
+#define BUF_LEN 258
+#define TIME_BUF 100
+#define SYNC_TIME_SUCCESS 0
+#define NTP_ALREADY_ENABLE 1
+#define NTP_ALREADY_DISABLE 2
+
+#define OPEN_ERROR 7
+#define ERROR_PARA 8
+
+#ifdef MOBILETEK_TARGET_PLATFORM_T106
+#define NTP_RESTART_BUF "/etc/init.d/sntp restart"
+#define NTP_STOP_BUF "/etc/init.d/sntp stop"
+#define NTP_START_BUF "/etc/init.d/sntp start"
+#define PGREP_NTP_DARMON "pgrep -x /usr/bin/sntp"
+#define SET_RTC() lynq_set_rtc_time()
+#else
+#define NTP_RESTART_BUF "systemctl restart ntpd"
+#define NTP_STOP_BUF "systemctl stop ntpd"
+#define NTP_START_BUF "systemctl start ntpd"
+#define PGREP_NTP_DARMON "pgrep ntpd"
+#define SET_RTC() system("hwclock -w -f /dev/rtc0")
+#endif
+
+#ifdef MOBILETEK_TARGET_PLATFORM_T106
+    typedef int (*sc_rtc_time_get_cb)(unsigned int src_id, unsigned long ulsec);
+extern int sc_rtc_timer_init(void);
+extern int sc_rtc_timer_uninit(void);
+extern int sc_rtc_time_set(int srcid);
+extern int sc_rtc_time_get(int srcid, sc_rtc_time_get_cb rtc_notify);
+
+char sync_from_rtc_cb_flag = 1;
+char rtc_time_get_cb_flag = 1;
+static unsigned long s_rtc_sec = 0;
+
+static int sync_from_rtc_cb(unsigned int src_id, unsigned long ulsec)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    sync_from_rtc_cb_flag = 1;
+    struct tm rtc_time = {0};
+    time_t tmp = 0;
+    char command[100] = "";
+    tmp = (time_t)ulsec;
+    rtc_time = *localtime(&tmp);
+
+    LYINFLOG("RTC time now is: %d-%d-%d,%d:%d:%d\n",
+             rtc_time.tm_year + 1900, rtc_time.tm_mon + 1, rtc_time.tm_mday, rtc_time.tm_hour, rtc_time.tm_min, rtc_time.tm_sec);
+    snprintf(command, sizeof(command), "date --set=\'@%lu\' ", ulsec);
+    system(command);
+    sync_from_rtc_cb_flag = 0;
+    return 0;
+}
+
+static int rtc_time_get_cb(unsigned int src_id, unsigned long ulsec)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    rtc_time_get_cb_flag = 1;
+    s_rtc_sec = ulsec;
+    struct tm rtc_time = {0};
+    time_t tmp = 0;
+    tmp = (time_t)ulsec;
+    rtc_time = *localtime(&tmp);
+    LYINFLOG("RTC time now is: %d-%d-%d,%d:%d:%d\n",
+             rtc_time.tm_year + 1900, rtc_time.tm_mon + 1, rtc_time.tm_mday, rtc_time.tm_hour, rtc_time.tm_min, rtc_time.tm_sec);
+    rtc_time_get_cb_flag = 0;
+    return 0;
+}
+
+int lynq_sync_time_from_rtc(void)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    int ret = -1;
+    int srcid = -1;
+    int i = 0;
+    if ((srcid = sc_rtc_timer_init()) <= 0)
+    {
+        LYERRLOG("rtc_timer_demo:rtc_timer_init fail!\n");
+        return -1;
+    }
+    ret = sc_rtc_time_get(srcid, sync_from_rtc_cb);
+    if (ret != 0)
+    {
+        LYERRLOG("sc_rtc_time_get failed !\n");
+        sc_rtc_timer_uninit();
+        return -1;
+    }
+
+    // Wait for the callback function to finish executing. But 5 seconds tops.
+    for (i = 25; i > 0; i--)
+    {
+        if (sync_from_rtc_cb_flag == 0)
+            break;
+        usleep(200000);
+    }
+
+    if (sync_from_rtc_cb_flag != 0)
+    {
+        LYERRLOG("rtc_get_time_cb failed\n");
+        sc_rtc_timer_uninit();
+        return -1;
+    }
+    LYINFLOG("sync from rtc success\n");
+    ret = sc_rtc_timer_uninit();
+    if (0 != ret)
+    {
+        LYERRLOG("uninit failed \n");
+        return -1;
+    }
+    return 0;
+}
+
+int lynq_set_rtc_time(void)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    int ret = -1;
+    int srcid = -1;
+    if ((srcid = sc_rtc_timer_init()) <= 0)
+    {
+        LYERRLOG("rtc_timer_demo:rtc_timer_init fail!\n");
+        return -1;
+    }
+    ret = sc_rtc_time_set(srcid);
+    if (ret != 0)
+    {
+        LYERRLOG("sc_rtc_time_set failed !\n");
+        return -1;
+    }
+    ret = sc_rtc_timer_uninit();
+    if (0 != ret)
+    {
+        LYERRLOG("uninit failed \n");
+        return -1;
+    }
+    return 0;
+}
+
+int lynq_get_rtc_time(unsigned long *ulsec)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    int ret = -1;
+    int srcid = -1;
+    int i = 0;
+    if (NULL == ulsec)
+    {
+        LYERRLOG("NULL parameter!\n");
+        return ERROR_PARA;
+    }
+    if ((srcid = sc_rtc_timer_init()) <= 0)
+    {
+        LYERRLOG("rtc_timer_demo:rtc_timer_init fail!\n");
+        return -1;
+    }
+    ret = sc_rtc_time_get(srcid, rtc_time_get_cb);
+    if (ret != 0)
+    {
+        LYERRLOG("sc_rtc_time_get failed !\n");
+        sc_rtc_timer_uninit();
+        return -1;
+    }
+
+    // Wait for the callback function to finish executing. But 5 seconds tops.
+    for (i = 25; i > 0; i--)
+    {
+        if (rtc_time_get_cb_flag == 0)
+            break;
+        usleep(200000);
+    }
+    if (rtc_time_get_cb_flag != 0)
+    {
+        LYERRLOG("rtc_get_time_cb failed\n");
+        sc_rtc_timer_uninit();
+        return -1;
+    }
+    *ulsec = s_rtc_sec;
+    ret = sc_rtc_timer_uninit();
+    if (0 != ret)
+    {
+        LYERRLOG("uninit failed \n");
+        return -1;
+    }
+    return 0;
+}
+#endif
+
+int lynq_get_time_src_status(time_src_status_s *time_src)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    char nitz_enable[8] = "";
+    char gnss_enable[8] = "";
+    char buf[BUF_LEN] = "";
+    if (NULL == time_src)
+    {
+        LYERRLOG("NULL parameter!\n");
+        return ERROR_PARA;
+    }
+    // get ntp status.
+    int ret = system(PGREP_NTP_DARMON);
+    if (0 == ret)
+    {
+        time_src->ntp = 1;
+    }
+    else
+    {
+        time_src->ntp = 0;
+    }
+
+    // get nitz status
+    sprintf(buf, "%s.%s.%s", LYNQ_UCI_FILE, LYNQ_SYNC_TIME_SECTION, LYNQ_MODEM_TIME_KEY);
+    lynq_uci_get(buf, nitz_enable);
+    time_src->nitz = atoi(nitz_enable);
+
+    // get gnss status
+    sprintf(buf, "%s.%s.%s", LYNQ_UCI_FILE, LYNQ_SYNC_TIME_SECTION, LYNQ_GNSS_TIME_KEY);
+    lynq_uci_get(buf, gnss_enable);
+    time_src->gnss = atoi(gnss_enable);
+
+    return 0;
+}
+
+const char *lynq_read_version()
+{
+    return "SYSTIME_V1.0";
+}
+
+int user_set_time(char *date, char *time)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    char cmd_buf[TIME_BUF] = "";
+    if (NULL == date || NULL == time)
+    {
+        LYERRLOG("NULL parameter!\n");
+        return ERROR_PARA;
+    }
+
+    // set systime
+    snprintf(cmd_buf, sizeof(cmd_buf), "date -s %s+%s", date, time);
+    system(cmd_buf);
+
+    // set RTC by macrofunction
+    SET_RTC();
+    return 0;
+}
+
+int ntp_sync_time(int enable)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    if (enable != 0 && enable != 1)
+    {
+        LYERRLOG("Parameter error! Only 0/1 allowed.\n");
+        return ERROR_PARA;
+    }
+    int ret = system(PGREP_NTP_DARMON);
+    if (0 == ret)
+    {
+        if (enable)
+        {
+            system(NTP_RESTART_BUF);
+            return NTP_ALREADY_ENABLE;
+        }
+        else
+        {
+            system(NTP_STOP_BUF);
+            return SYNC_TIME_SUCCESS;
+        }
+    }
+    else
+    {
+        if (enable)
+        {
+            // Only one time source is allowed to run simultaneously.
+            modem_time_enable(0);
+            gnss_time_enable(0);
+            system(NTP_START_BUF);
+            return SYNC_TIME_SUCCESS;
+        }
+        else
+        {
+            return NTP_ALREADY_DISABLE;
+        }
+    }
+}
+
+int modem_time_enable(int enable)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    char buf[BUF_LEN] = "";
+    int ret = 0;
+    if (enable != 0 && enable != 1)
+    {
+        LYERRLOG("Parameter error! Only 0/1 allowed.\n");
+        return ERROR_PARA;
+    }
+    if (enable)
+    {
+        // Only one time source is allowed to run simultaneously.
+        ntp_sync_time(0);
+        gnss_time_enable(0);
+    }
+    sprintf(buf, "%s.%s.%s=%d", LYNQ_UCI_FILE, LYNQ_SYNC_TIME_SECTION, LYNQ_MODEM_TIME_KEY, enable);
+    ret = lynq_uci_set(buf);
+    if (ret == 4)
+        ret = 0;
+    return ret;
+}
+
+int gnss_time_enable(int enable)
+{
+    LYLOGSET(LOG_LEVEL);
+    LYLOGEINIT(USER_LOG_TAG);
+    LYDBGLOG("[%s][%d] enter.\n", __FUNCTION__, __LINE__);
+    char buf[BUF_LEN] = "";
+    int ret = 0;
+    if (enable != 0 && enable != 1)
+    {
+        LYERRLOG("Parameter error! Only 0/1 allowed.\n");
+        return ERROR_PARA;
+    }
+    if (enable)
+    {
+        // Only one time source is allowed to run simultaneously.
+        ntp_sync_time(0);
+        modem_time_enable(0);
+    }
+    sprintf(buf, "%s.%s.%s=%d", LYNQ_UCI_FILE, LYNQ_SYNC_TIME_SECTION, LYNQ_GNSS_TIME_KEY, enable);
+    ret = lynq_uci_set(buf);
+    if (ret == 4)
+        ret = 0;
+    return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-systime/makefile b/cap/zx297520v3/src/lynq/lib/liblynq-systime/makefile
new file mode 100755
index 0000000..57c68c9
--- /dev/null
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-systime/makefile
@@ -0,0 +1,74 @@
+SHELL = /bin/sh
+RM = rm -f
+
+LOCAL_CFLAGS := -Wall \
+                -std=gnu++14 \
+                -g -Os \
+                -flto \
+                -fPIC \
+                -fpermissive \
+
+ifeq ($(strip $(TARGET_PLATFORM)), T106)
+LOCAL_CFLAGS += -DBINDER_IPC_32BIT=1 -DHAVE_ENDIAN_H -DHAVE_PTHREADS -DHAVE_SYS_UIO_H -DHAVE_POSIX_FILEMAP -DHAVE_STRLCPY -DHAVE_PRCTL -DHAVE_MEMSET16 -DHAVE_MEMSET32 -DANDROID_SMP=0 
+endif
+
+ifeq ($(strip $(TARGET_PLATFORM)), T106)
+LOCAL_CFLAGS += -DMOBILETEK_TARGET_PLATFORM_T106
+endif
+
+LOCAL_CFLAGS += $(CFLAGS)
+$(warning ################# rock ROOT: $(ROOT),includedir:$(includedir),)
+
+LOCAL_PATH   = .
+
+LOCAL_C_INCLUDES = \
+  -I. \
+  -I$(LOCAL_PATH)/include \
+  -I$(ROOT)$(includedir)/logger \
+  -I$(ROOT)$(includedir)/liblog \
+  -I$(ROOT)$(includedir) \
+
+
+LOCAL_LIBS := \
+    -L. \
+    -ldl \
+    -lstdc++ \
+    -lpthread \
+    -lsctel \
+    -llynq-uci \
+
+
+SOURCES = $(wildcard *.cpp)
+
+EXECUTABLE = liblynq-systime.so
+
+OBJECTS=$(SOURCES:.cpp=.o)
+
+.PHONY: build clean install pack_rootfs 
+
+all: build
+$(EXECUTABLE): $(OBJECTS)
+	$(CXX) -shared -Wl,--no-undefined $(OBJECTS) $(LOCAL_LIBS) $(LOCAL_CFLAGS) $(LOCAL_C_INCLUDES) -o $@
+
+%.o : %.cpp
+	$(CXX) $(LOCAL_C_INCLUDES) $(LOCAL_CFLAGS) $(LOCAL_LIBS) -o $@ -c $< 
+
+build:  $(EXECUTABLE)
+	$(warning ########## build $(EXECUTABLE)  ##########)
+
+install:
+	mkdir -p $(ROOT)$(base_libdir)/
+	install $(EXECUTABLE) $(ROOT)$(base_libdir)/
+	mkdir -p $(ROOT)$(includedir)/$(NAME)/sdk
+
+pack_rootfs:
+	mkdir -p $(PACK_INITRAMFS_TO)$(base_libdir)/
+	cp -af $(EXECUTABLE) $(PACK_INITRAMFS_TO)$(base_libdir)/
+	$(CROSS)strip $(PACK_INITRAMFS_TO)$(base_libdir)/$(EXECUTABLE)
+	mkdir -p $(PACK_TO)$(base_libdir)/
+	cp -af $(EXECUTABLE) $(PACK_TO)$(base_libdir)/
+	$(CROSS)strip $(PACK_TO)$(base_libdir)/$(EXECUTABLE)
+.PHONY: clean
+clean:
+	$(RM) $(OBJECTS) $(EXECUTABLE)
+
diff --git a/cap/zx297520v3/src/lynq/lib/liblynq-uci/lynq_uci.config b/cap/zx297520v3/src/lynq/lib/liblynq-uci/lynq_uci.config
index 3ac501d..f77fd37 100755
--- a/cap/zx297520v3/src/lynq/lib/liblynq-uci/lynq_uci.config
+++ b/cap/zx297520v3/src/lynq/lib/liblynq-uci/lynq_uci.config
@@ -9,7 +9,8 @@
         option gateway '192.168.11.1'
 
 config  lynq_sync_time_rw  'lynq_sync_time'
-
+        option lynq_modem_sync_time_enable '0'
+        option lynq_gnss_sync_time_enable '0'
 config  lynq_autosuspend  'lynq_autosuspend'
         option auto_enable '0'
         option debug '1'
diff --git a/cap/zx297520v3/zxic_code/zxic_source/zxic_app_open/platform/at_ctl/src/atconfig/ps_normal.c b/cap/zx297520v3/zxic_code/zxic_source/zxic_app_open/platform/at_ctl/src/atconfig/ps_normal.c
index f7becaa..caac23e 100755
--- a/cap/zx297520v3/zxic_code/zxic_source/zxic_app_open/platform/at_ctl/src/atconfig/ps_normal.c
+++ b/cap/zx297520v3/zxic_code/zxic_source/zxic_app_open/platform/at_ctl/src/atconfig/ps_normal.c
@@ -115,6 +115,14 @@
 	void *p[5] = {&timeinfo.time_zone,&timeinfo.sav_time,temp1,temp2,timeinfo.univer_time};
 	int time_zone = 0;
 	
+	//>>>sj.zhang add @2023-08-10 for systime NITZ sync enable/disenable.
+	if(0 != system("uci get lynq_uci.lynq_sync_time.lynq_modem_sync_time_enable | grep -E \'^1$\'"))
+	{
+		at_print(AT_ERR,"zmmi_auto_act: nitz disenabled. \n");
+		return AT_END;
+	}
+	//>>>sj.zhang add @2023-08-10 end.
+
     sc_cfg_get("sntp_time_set_mode", mode, sizeof(mode));
 	if(strcmp(mode, "manual") == 0)
 	{