parse_timestamp   611 src/journal/journalctl.c                         r = parse_timestamp(optarg, &arg_since);
parse_timestamp   620 src/journal/journalctl.c                         r = parse_timestamp(optarg, &arg_until);
parse_timestamp    99 src/shared/time-util.h int parse_timestamp(const char *t, usec_t *usec);
parse_timestamp   257 src/timedate/timedatectl.c         r = parse_timestamp(args[1], &t);