diff --git a/src/irqhandler.cpp b/src/irqhandler.cpp
index 3702634a..97c026e0 100644
--- a/src/irqhandler.cpp
+++ b/src/irqhandler.cpp
@@ -52,6 +52,7 @@ void irqHandler(void *pvParameters) {
 #if (TIME_SYNC_INTERVAL)
     // is time to be synced?
     if (InterruptStatus & TIMESYNC_IRQ) {
+      now(); // ensure sysTime is recent
       time_t t = timeProvider();
       if (timeIsValid(t))
         setTime(t);
diff --git a/src/main.cpp b/src/main.cpp
index 4c573e46..96198e4a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -51,7 +51,7 @@ So don't do it if you do not own a digital oscilloscope.
 -------------------------------------------------------------------------------
 0	displayIRQ -> display refresh -> 40ms (DISPLAYREFRESH_MS)
 1 ppsIRQ -> pps clock irq -> 1sec
-2	gpsIRQ -> gps store data -> 500ms
+2	gpsIRQ -> gps store data -> 300ms
 3	unused
 
 
@@ -414,7 +414,7 @@ void setup() {
 #if (HAS_GPS)
   gpsIRQ = timerBegin(2, 80, true);
   timerAttachInterrupt(gpsIRQ, &GpsIRQ, true);
-  timerAlarmWrite(gpsIRQ, 500 * 1000, true);
+  timerAlarmWrite(gpsIRQ, 300 * 1000, true);
   timerAlarmEnable(gpsIRQ);
 #endif
 
diff --git a/src/timekeeper.cpp b/src/timekeeper.cpp
index ef0b44c4..99c72a4f 100644
--- a/src/timekeeper.cpp
+++ b/src/timekeeper.cpp
@@ -39,6 +39,7 @@ time_t timeProvider(void) {
 #endif
     timeSource = _gps;
     timesyncer.attach(TIME_SYNC_INTERVAL * 60, timeSync); // regular repeat
+    ESP_LOGD(TAG, "GPS time = %d", t);
     return t;
   }
 #endif
@@ -49,6 +50,7 @@ time_t timeProvider(void) {
   if (t) {
     timeSource = _rtc;
     timesyncer.attach(TIME_SYNC_INTERVAL_RETRY * 60, timeSync); // short retry
+    ESP_LOGD(TAG, "RTC time = %d", t);
   }
 #endif
 
@@ -127,7 +129,6 @@ void timepulse_start(void) {
 #endif
 
   // start cyclic time sync
-  now();      // ensure sysTime is ßrecent
   timeSync(); // init systime by RTC or GPS or LORA
   timesyncer.attach(TIME_SYNC_INTERVAL * 60, timeSync);
 }