GPT Timestamp Injector
Extension Actions
Automatically prepends the current date/time to messages you send in ChatGPT (chatgpt.com & chat.openai.com). No data collection.
Ever looked back at a ChatGPT conversation and thought, “When did I write this?”
GPT Timestamp keeps things simple: it automatically adds the current date and time to every message you send. Nothing extra, nothing complicated.
What you get:
Clear timestamps on all your messages
Local timezone support (no more UTC guesswork)
Works whether you hit Enter or click the Send button
Small, lightweight, no tracking, no ads
Perfect if you use ChatGPT for:
Journaling or personal reflection
Research notes or study logs
Work conversations or project records
Stay organized without lifting a finger. Install GPT Timestamp and always know when your messages were written.