🔒 Runs in your browser – nothing is sent
Date & Time Tools
Accurate tools for dates, time zones, timers and calendars. Everything runs in your browser.
All tools
How to use
- Enter a date, time or value.
- Results update instantly.
- Copy the result you need.
Frequently asked questions
Is it free?
Yes. All tools are free, with no sign-up and no limits.
Is my data stored or sent?
No. Everything runs in your browser. A few tools remember your choices on this device only.
Are the results accurate?
Calculations use your browser’s built-in date and time zone data and standard formulas. For legal or religious dates, confirm with the official authority.