clock¶

German local time (CET/CEST) from UTC, without a timezone database.

EU rule: summer time runs from the last Sunday in March, 01:00 UTC, to the last Sunday in October, 01:00 UTC. Functions take time.gmtime() tuples: (year, month, mday, hour, minute, second, weekday [Monday = 0], yearday).

Attributes¶

`MIN_VALID_YEAR`
`SECONDS_PER_DAY`

Functions¶

`is_summer_time`(utc)	Whether German summer time (CEST) applies at a UTC time.
`local_minutes`(utc)	Minutes since local midnight, or None if the clock is not set.
`local_hhmm`(utc)	Local wall-clock time as "HH:MM", or None if the clock is not set.
`parse_iso`(text)	Parse an ISO 8601 time into a UTC time tuple.
`local_date_hhmm`(utc)	Local date and time as "26.09. 18:00", or None for an unset time.

Module Contents¶

clock.MIN_VALID_YEAR = 2024¶

clock.SECONDS_PER_DAY = 86400¶

clock.is_summer_time(utc)¶

Whether German summer time (CEST) applies at a UTC time.

Parameters:: utc – A time.gmtime() tuple.
Returns:: 00 UTC.
Return type:: True between the last Sundays of March and October, 01

clock.local_minutes(utc)¶: Minutes since local midnight, or None if the clock is not set.

clock.local_hhmm(utc)¶: Local wall-clock time as “HH:MM”, or None if the clock is not set.

clock.parse_iso(text)¶

Parse an ISO 8601 time into a UTC time tuple.

Accepts times like “2026-09-26T18:00:00+02:00”, “…Z” or without zone (taken as UTC), as Home Assistant’s attributes contain them.

Parameters:: text – The time as text.
Returns:: A time.gmtime()-like tuple in UTC, or None if it cannot be read.

clock.local_date_hhmm(utc)¶: Local date and time as “26.09. 18:00”, or None for an unset time.