ChatGPT Timestamp (Adavnce)

About

ChatGPT Timestamp (Adavnce) is a premium time-intelligence extension for ChatGPT that adds clear, readable, and highly customizable timestamps to every conversation message.
If you use ChatGPT for work, study, research, debugging, writing, or support, this extension helps you understand exactly when messages were created, how recent they are, and how your conversation timeline evolves.

Why this extension exists
Chat conversations move fast. You may come back after a break and ask:
When did I send this prompt?
Was this reply generated minutes ago or hours ago?
Which message came first during a long back-and-forth?
What is the exact time in UTC for documentation or team collaboration?
ChatGPT Timestamp (Adavnce) answers those questions instantly by placing timestamp chips directly on messages with elegant, high-clarity UI.

Core Features
Per-message timestamps inside ChatGPT
Adds visible timestamp badges directly above messages.
12-hour / 24-hour format
Choose your preferred clock style.
Local time or UTC
Instantly switch between your device timezone and UTC.
Role-based filtering
Show timestamps for:
all messages
user messages only
assistant messages only
Relative time mode
Display friendly labels such as:
just now
4m ago
2h ago
1d ago
Optional date and seconds
Show or hide date and seconds for cleaner or more precise output.
Compact mode
Minimal visual footprint for distraction-free reading.
Left/right alignment
Position badges to match your preferred chat reading flow.
Click-to-copy timestamp
Copy absolute time + ISO timestamp with one click.
Live popup preview
Instantly see how your format choices look before applying.
One-click reset
Restore defaults anytime.

Designed for everyday power users
Whether you are a solo creator or part of a team, this extension is useful for:
Prompt engineering logs
QA and debugging conversations
AI-assisted coding sessions
Knowledge work and research trails
Meeting recap generation
Timestamp-based citation and traceability
Customer support transcript tracking
Productivity audits (“how long did this thread take?”)

UX philosophy
ChatGPT Timestamp (Adavnce) is built with a high-end product mindset:
Fast, focused controls
Clean and modern visual system
Strong contrast and readability
Motion that feels polished, not distracting
Practical defaults with deep customization
The goal is simple: professional-grade time visibility without clutter.

Privacy-first approach
Your conversation content stays with you.
No account required
No external server needed for core functionality
No message history uploads by default
Settings are stored locally in your browser context for ChatGPT pages
This extension is designed to improve UI/metadata visibility only.

Permission transparency
This extension requests only the permissions needed for its function:
activeTab
Applies settings to your currently active ChatGPT tab.
scripting
Injects the timestamp UI behavior into supported ChatGPT pages.
Supported sites:
https://chat.openai.com/*
https://chatgpt.com/*

Performance and behavior
Uses smart DOM observation to detect new messages in real time.
Refreshes timestamps when chat updates.
Keeps updates lightweight and responsive.
Relative time mode auto-refreshes periodically for accurate “ago” labels.

Who should install this?
Install ChatGPT Timestamp (Adavnce) if you:
need accurate message timing in ChatGPT
switch across timezones or collaborate internationally
keep records of AI interactions
care about auditability and sequence clarity
want premium UX without complexity

Notes
This extension is an independent enhancement tool and is not affiliated with or endorsed by OpenAI.
ChatGPT UI updates may occasionally require extension updates to maintain compatibility.
Feature improvements are planned continuously to support future workflow needs.

Quick Start
Install extension.
Open ChatGPT.
Click extension icon.
Choose your preferred format, timezone, and scope.
Enjoy clear message timing in every thread.