struct timeval *timeval_store(struct timeval *tv, usec_t u);
char *format_timestamp(char *buf, size_t l, usec_t t);
+char *format_timestamp_us(char *buf, size_t l, usec_t t);
char *format_timestamp_relative(char *buf, size_t l, usec_t t);
char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy);
int parse_sec(const char *t, usec_t *usec);
int parse_nsec(const char *t, nsec_t *nsec);
+
+bool ntp_synced(void);