TimeUnix

class astropy.time.TimeUnix(val1, val2, scale, precision, in_subfmt, out_subfmt, from_jd=False)[source] [edit on github]

Bases: astropy.time.TimeFromEpoch

Unix time: seconds from 1970-01-01 00:00:00 UTC. For example, 946684800.0 in Unix time is midnight on January 1, 2000.

NOTE: this quantity is not exactly unix time and differs from the strict POSIX definition by up to 1 second on days with a leap second. POSIX unix time actually jumps backward by 1 second at midnight on leap second days while this class value is monotonically increasing at 86400 seconds per UTC day.

Attributes Summary

epoch_format
epoch_scale
epoch_val
epoch_val2
name
scale Time scale
unit
value

Methods Summary

set_jds(val1, val2) Initialize the internal jd1 and jd2 attributes given val1 and val2.
to_value([parent]) Return time representation from internal jd1 and jd2.

Attributes Documentation

epoch_format = 'iso'
epoch_scale = 'utc'
epoch_val = '1970-01-01 00:00:00'
epoch_val2 = None
name = 'unix'
scale

Time scale

unit = 1.1574074074074073e-05
value

Methods Documentation

set_jds(val1, val2) [edit on github]

Initialize the internal jd1 and jd2 attributes given val1 and val2. For an TimeFromEpoch subclass like TimeUnix these will be floats giving the effective seconds since an epoch time (e.g. 1970-01-01 00:00:00).

to_value(parent=None) [edit on github]

Return time representation from internal jd1 and jd2. This is the base method that ignores parent and requires that subclasses implement the value property. Subclasses that require parent or have other optional args for to_value should compute and return the value directly.