Quick answer
Codex has a five-hour window on most plans and a weekly window. A new five-hour window starts with your first message after the previous one ends, so the reset time moves with your work. /status in the CLI shows both reset times.
Two windows, two resets
- Five-hour window. Starts with your first message and resets five hours later. Pro plans have no five-hour window right now.
- Weekly window. Resets on a weekly cycle. OpenAI's resets can move its date.
See your reset times
- In the CLI, run
/status. - On the web, open the Codex usage page.
- In UsageAtlas, the Codex card shows both windows with their reset times, all day.
Manual resets from OpenAI
OpenAI reset Codex limits for everyone several times in 2026. That is why people search for a "Codex reset tracker." A tracker shows the result right away, since the windows drop back to zero.
Questions, answered
Does the Codex limit reset at midnight?
No. The five-hour window starts with your first message, and the weekly window follows its own cycle.
Why did my Codex weekly reset date change?
Resets from OpenAI can move it. Check /status for the current date.
Is there a Codex reset tracker?
UsageAtlas shows both Codex windows and their reset times in the tray or menu bar. When OpenAI resets limits, the percentages drop back on the next refresh.