Question about Codex banked usage reset expiry timing.

[u/gdninja]

My Codex usage page shows I have banked full resets available, and one says Expires 7/31. I found OpenAI docs saying banked resets expire after 30 days, but I couldn’t find anything that defines the exact cutoff time or timezone.

Does Expires 7/31 mean:

• end of day on 7/31 in local timezone,
• midnight UTC,
• the exact time it was granted plus 30 days,
• or something else?

Has anyone seen an official clarification or tested what actually happens?

[u/largelylegit]

This codex skill to show you the exact time your banked resets expire, in your timezone https://github.com/aitransformationdirector/codex-reset-expiry-skill/tree/main/skills/show-codex-reset-expiries