Man pages matching name timegm in section 3:

timegm.3.en	debian 10 / manpages-dev
timegm.3.es	debian 10 / manpages-es
timegm.3.ja	debian 10 / manpages-ja-dev
timegm.3.en	debian 11 / manpages-dev
timegm.3.es	debian 11 / manpages-es-dev
timegm.3.fr	debian 11 / manpages-fr-dev
timegm.3.ja	debian 11 / manpages-ja-dev
timegm.3.en	debian 12 / manpages-dev
timegm.3.es	debian 12 / manpages-es-dev
timegm.3.ja	debian 12 / manpages-ja-dev