Python 3.9+zoneinfofunction

zoneinfo.available_timezones()

time zones

Returns a set of all IANA time zone keys available on the system, such as 'Europe/Moscow'.

Syntax

zoneinfo.available_timezones() -> set[str]

It returns a set, not a list, so use sorted() to show it to users. Every call walks the file system again and is expensive; store the result instead of calling it in a loop. The contents depend on the machine: on Windows without the tzdata package the set is empty.

Examples

import zoneinfo
zones = zoneinfo.available_timezones()
print(type(zones).__name__)  # → set
print('Europe/Moscow' in zones)  # → ? True при наличии базы
print(len(zones))  # → ? зависит от версии базы

See also

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