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Timestamps

How to find out when ChatGPT sent a specific reply

Updated May 27, 2026

Quick answer

ChatGPT gives you no way to check when a specific reply was generated. The interface shows no timestamps, so you cannot tell whether a response came yesterday or six months ago. GPT Master adds an exact date and time above every message, pulled from ChatGPT's own API data. Format: "Mar 11, 1:00 AM". Hover the timestamp for the full weekday. Works on all messages with no tier restrictions.

Several situations make the timing of a specific ChatGPT reply matter: fact-checking whether advice predates a change in information, confirming when you were told something, or verifying the sequence of a long research thread. ChatGPT gives you none of this. GPT Master adds it with one-message precision.

  1. 1

    Open the conversation containing the reply you want to date

    With GPT Master installed, go to chatgpt.com and open the conversation. Timestamps load automatically when the page renders.

  2. 2

    Find the message and read its timestamp

    Scroll to the specific reply. The timestamp appears directly above the message text, showing the exact date and time it was sent. For replies from older conversations, the year is included in the format.

  3. 3

    Hover for the full weekday if you need it

    Move your cursor over the timestamp to see the expanded tooltip, which adds the full day of week. This is useful if you need to confirm "was this a weekday or weekend" or identify a specific date from the weekday alone.

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Frequently asked questions

Does the timestamp show when ChatGPT finished writing the reply or when it started?
The timestamp reflects when the message was recorded in the ChatGPT API, which corresponds to when the response was completed and saved. For practical purposes this is the time the reply was sent.
Can I find timestamps on replies in archived conversations?
Yes. GPT Master adds timestamps to all conversations, including archived ones. Open an archived conversation and the timestamps are present on every message.
What if I need to verify that ChatGPT said something before a specific date?
The exact date and time shown by GPT Master comes from ChatGPT's own API data. Hover the timestamp for the full weekday date, the most complete date reference available.
Does this work on ChatGPT Plus and free accounts?
GPT Master timestamps work regardless of your ChatGPT account tier. Free and Plus accounts both get the same message-level timestamp display.

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