Date to Unix Time Converter – Convert Date Online (Free Tool)

Date to Unix Time produces the seconds-or-milliseconds-since-epoch integer for any date you pick. Useful when seeding test data, building cache keys, or computing expiry times for tokens and signed URLs.

• Your data stays private — all processing happens locally in the browser
• No telemetry, no tracking pixels, no third-party scripts
• Open-and-go: bookmark the page once and never look for an alternative
• Round-trips cleanly — convert there and back without losing precision or fidelity
• Strict and lenient parser modes for handling messy real-world data

1. Pick a date and time using the date-time input
2. Choose seconds (10-digit) or milliseconds (13-digit) for the output
3. Copy the Unix timestamp into your code, database, or API call
4. Use "Now" to quickly grab the current timestamp

• Computing token / session expiry timestamps
• Seeding test data with controlled timestamps
• Building cache keys or signed-URL signatures
• Bridging human-readable dates to systems that store ints

Output off by my timezone.

The input is interpreted in your local timezone. To enter a UTC time, set your input to the UTC value or use a timezone-aware date string.