Class CavernTime

object --+
         |
        CavernTime

Cavern time calculator

Calculates the cavern time and other useful tz based on a given local time zone. Call a CavernTime object:

• datetime -- Current time in UTC as <datetime> object

• datetime -- current time TZ as <datetime> object
• tz -- time zone object
• dst -- dst in seconds if dst
• utcoffset -- (signum, hours, fraction) offset from UTC
• name -- long time like US/Mountain
• id -- short name like MST

>>> ct = CavernTime()
>>> result = ct()
>>> 'cavern' in result, 'pacific' in result
(True, True)
>>> result = ct.info()
>>> 'utc' in result
True

>>> cav = result['cavern']
>>> off = cav['utcoffset']
>>> dst = cav['dst']
>>> (not dst and off == ('-', -7, 0.0)) or (dst and off == ('-', -8, 0.0)) or off
True
>>> cav['id']
'MST'
>>> cav['name']
'US/Mountain'
>>> cav['dst'] in (0, 3600)
True
>>> del cav

>>> pst = result['pacific']
>>> dst = pst['dst']
>>> (not dst and off == ('-', -7, 0.0)) or (dst and off == ('-', -8, 0.0)) or off
True
>>> pst['id']
'PST'
>>> pst['name']
'US/Pacific'
>>> pst['dst'] in (0, 3600)
True
>>> del pst