# Where Do RTMS Timestamps Come From?

**URL:** <https://devforum.zoom.us/t/where-do-rtms-timestamps-come-from/131367>\
**Category:** Realtime Media Streams\
**Created:** [April 11, 2025, 5:40pm UTC](https://devforum.zoom.us/t/where-do-rtms-timestamps-come-from/131367 "2025-04-11T17:40:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![joan.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/joan.zoom/32/36823_2.png) [@joan.zoom](https://devforum.zoom.us/u/joan.zoom)\
**Post date:** [April 11, 2025, 5:40pm UTC](https://devforum.zoom.us/t/where-do-rtms-timestamps-come-from/131367/1 "2025-04-11T17:40:51Z")

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**Are timestamps for RTMS signals generated on the local user’s device or from Zoom’s servers?**

_This was a great question asked during the kickoff — reposting here so others can benefit!_

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**Author:** ![joan.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/joan.zoom/32/36823_2.png) [@joan.zoom](https://devforum.zoom.us/u/joan.zoom)\
**Post date:** [April 11, 2025, 5:45pm UTC](https://devforum.zoom.us/t/where-do-rtms-timestamps-come-from/131367/2 "2025-04-11T17:45:51Z")

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Timestamps come from the Zoom clock, not the user’s local machine. This ensures consistency across all participants in a meeting, regardless of their local system time. You’ll also find that the Zoom JS SDK includes methods to manually start and stop RTMS workflows

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**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [July 21, 2025, 4:29pm UTC](https://devforum.zoom.us/t/where-do-rtms-timestamps-come-from/131367/3 "2025-07-21T16:29:44Z")

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Closed on July 21, 2025, 4:29pm UTC