# Monitors daylight savings time changes and publishes them to PTP stack

**URL:** <https://community.nwtime.org/t/monitors-daylight-savings-time-changes-and-publishes-them-to-ptp-stack/70>\
**Category:** Documentation\
**Created:** [January 28, 2026, 3:29pm UTC](https://community.nwtime.org/t/monitors-daylight-savings-time-changes-and-publishes-them-to-ptp-stack/70 "2026-01-28T15:29:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dru](https://sea1.discourse-cdn.com/flex001/user_avatar/community.nwtime.org/dru/32/337_2.png) [@Dru](https://community.nwtime.org/u/Dru)\
**Post date:** [January 28, 2026, 3:29pm UTC](https://community.nwtime.org/t/monitors-daylight-savings-time-changes-and-publishes-them-to-ptp-stack/70/1 "2026-01-28T15:29:32Z")

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> **[tz2alt(8): Monitors daylight savings time changes and publishes them to PTP...](https://linuxptp.nwtime.org/documentation/tz2alt/)**
>
> Man page for tz2alt which monitors daylight savings time changes and publishes them to PTP stack.