Fix problem with showing HH:MM:60 as rounded time

src/data_obs.cpp

@@ -149,10 +149,10 @@ int data_obs::set_time(int year, int mon, int day, int hour, int min, int sec,
 int data_obs::set_time(struct timespec* time) {
 
 	// Initialize tm
-        //TODO Make t a class-variable to avoid repeated allocation
-        struct tm t = {0};
+    //TODO Make t a class-variable to avoid repeated allocation
+    struct tm t = {0};
 
-        // Use gmtime_r for thread-safety
+    // Use gmtime_r for thread-safety
 	gmtime_r(&time->tv_sec,&t);
 
 	year = t.tm_year + 1900;
@@ -295,6 +295,7 @@ std::string data_obs::get_time(std::string formatstr, bool rounded) const{
 
 	if (rounded && data_obs::msec >= 500e6){
 		tm.tm_sec += 1;
+		mktime(&tm);
 	}
 
 	// TODO This may be slow, possibly better to use sprintf and fixed