Enter a date — DD/MM/YYYY or a full ISO timestamp — and get four consistent formats at once: ISO 8601, a long English date, a short US date and a UTC string. Leave the field empty to format today. Useful for aligning dates across docs, APIs and international teams.
🔒 Your file is processed locally in your browser whenever supported. This tool runs entirely on your device — nothing you type or upload is sent to a server, logged, or stored.
ISO 8601 (YYYY-MM-DD or a full timestamp with an offset) is the safest choice: it sorts correctly and is unambiguous across locales.
They are fixed to en-US for consistency, so month names and the short date order do not change with the visitor's browser locale. Use ISO or UTC when locale independence matters.
A date-only value is treated as a calendar date on your device. The UTC output shows the same instant in UTC, which can shift by a day for dates near midnight in some timezones.
Yes. Formatting happens in your browser.
| Platform | Supported | Offline | Local | Server | Network |
|---|---|---|---|---|---|
| WEB | Yes | Yes | Yes | No | Not required |
| PWA | Yes | Yes | Yes | No | Not required |
| ANDROID | Yes | Yes | Yes | No | Not required |
| IOS | Yes | Yes | Yes | No | Not required |
Count years, months, days and weeks between two dates.
Convert between Unix timestamps and human-readable dates.
Calculate exact age in years, months, and days.
Count down to any date and time, or from a number of seconds — free online timer.
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