Outage in Cloudflare Workers
Cloudflare Workers Runtime API issues
Resolved MinorIncident Report
Summary AI Generated
A Cloudflare Workers runtime release beginning July 30, 2026 inadvertently exposed a native `Temporal` global object with a broken clock fixed at epoch 0 (1970-01-01), causing Workers that rely on polyfill detection to silently compute time-dependent logic against the wrong date. This resulted in incorrect token expiries, TTLs, and date arithmetic with no errors raised, while `Date` and `Date.now()` remained unaffected. A fix was implemented on August 4, 2026, with monitoring ongoing after a 16-hour incident window.
Cloudflare is aware of an issue with the latest Workers Runtime API release that exposes native Temporal with clock stuck at epoch 0. Updates to follow.
Components affected
Cloudflare Workers Cloudflare Sites and Services Cloudflare Workers WorkersLatest Updates ( sorted recent to last )
MONITORING
2 days ago - at 08/04/2026 07:00AM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
2 days ago - at 08/03/2026 03:21PM
Workers runtime: Temporal global exposed with an incorrect clock
Since 2026-07-30, the Workers runtime has exposed a global Temporal object that was not intended to be available. Its clock is wrong: Temporal.Now reports 1970-01-01 rather than the current time. Date and Date.now() are unaffected and report the correct time.
This can affect Workers that install a Temporal polyfill only when no native Temporal is detected. On those Workers, the polyfill stopped being installed and time-dependent logic began computing against 1970 — for example, tokens minted with an issue time of 0 and an expiry in 1970, incorrect TTLs, or incorrect date arithmetic. No error is raised when this happens.
INVESTIGATING
2 days ago - at 08/03/2026 03:13PM
Cloudflare is aware of an issue with the latest Workers Runtime API release that exposes native Temporal with clock stuck at epoch 0. Updates to follow.
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