# Meta — NTS: Authenticated Time at Meta

- Company: Meta (meta.com)
- Announced: 2026-10-06T16:00:06+00:00
- Category: infrastructure-release
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://engineering.fb.com/2026/10/06/production-engineering/nts-authenticated-time-at-meta/
- Record: https://forck.live/items/16230-nts-authenticated-time-at-meta
- Subject: Llama / infrastructure

Meta has launched an authenticated time service using NTS (Network Time Security, RFC 8915) at nts.meta.com, allowing devices to verify that time packets originated from Meta and were not tampered with. The NTS servers are stateless, deriving cookie keys from a shared master secret rather than storing or replicating per-client state. Meta has open-sourced the protocol, server, and client via its Time library on GitHub and is encouraging NTP client maintainers on Android and iOS to adopt NTS support.

## Evidence

Verbatim from https://engineering.fb.com/2026/10/06/production-engineering/nts-authenticated-time-at-meta/:

> Meta’s public time service now speaks NTS (Network Time Security, RFC 8915) at nts.meta.com. Packets are authenticated, so a device can verify the time came from us and was not modified on the way.

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Record: https://forck.live/items/16230-nts-authenticated-time-at-meta
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md