What timezone does Codex use for resets?
A timestamp is useful only after its timezone is clear. Convert the time shown in your account instead of assuming every reset follows UTC or your local midnight.
Use the timezone shown by the product
The official usage interface is the source of truth for an account-specific reset. Depending on the surface, it may show a local time, a timezone marker, or a relative duration. Record the full value rather than copying only the hour.
Codex Limit Watch displays public evidence in both UTC-oriented records and local browser time where appropriate. That conversion does not change the underlying instant.
UTC and local time are the same event
A reset at 16:00 UTC and a reset at midnight in UTC+8 can describe the same moment. When comparing reports, convert both timestamps to one timezone before deciding that two users have different schedules.
- Include the calendar date during conversion.
- Check whether the offset is positive or negative.
- Do not compare clock hours without timezone labels.
Daylight-saving time can move the clock display
Regions that observe daylight-saving time can change their UTC offset during the year. The underlying reset interval may remain unchanged while the local wall-clock time appears one hour earlier or later. A timezone-aware calendar is safer than manually adding a fixed offset for future dates.
A practical planning method
Save the official reset timestamp in a calendar using its explicit timezone, then let the calendar convert it for travel or daylight-saving changes. Recheck the product before a large task because plan rules and account windows can change.