true iff monotonic wall-clock time is available.
count c is is the wall-clock time span elapsed since
c was created.
counter () is a counter counting time from now on.
86_400., the number of seconds in one SI-accepted day.
elapsed () is the wall-clock time span elapsed since the
beginning of the program.
3600., the number of seconds in one SI-accepted hour.
60., the number of seconds in one SI-accepted minute.
1e-3, the number of seconds in one millisecond.
1e-9 the number of seconds in one nanosecond.
pp_span ppf span prints an unspecified representation of
does but on a seconds floating
point time span value (which can be negative).
1. /. 86400., the number of SI-accepted days in
1. /. 3600., the number of SI-accepted hours in
1. /. 60., the number of SI-accepted minutes in
1e3, the number of milliseconds in one second.
1e9 the number of nanoseconds in one second.
1e6, the number of microseconds in one second.
1. /. 31_557_600., the number of Julian years
in one second.
to_day span is
span in SI-accepted days (24 hours, 86400s).
to_hour span is
span in SI-accepted hours (3600s).
to_min span is
span in SI-accepted minutes (60s).
to_ms span is
span in milliseconds (1e-3s).
to_ns span is
span in nanoseconds (1e-9s).
span in nanoseconds as an unsigned 64-bit
to_s span is
span is seconds.
to_us span is
span in microseconds (1e-6s).
to_year span is
span in Julian years (365.25 days, 31'557'600s).
1e-6, the number of seconds in one microsecond.
31_557_600., the number of seconds in a Julian year.