📅 Date & Time

Date to Unix Timestamp

Convert a calendar date (UTC midnight) into a Unix timestamp.

Results

Unix timestamp (s)
1,767,225,600
Milliseconds
1,767,225,600,000

📊 Date to Unix Timestamp chart

Character composition of the result: letters, digits, spaces, punctuation and other symbols.

What is the Date to Unix Timestamp?

Convert a calendar date (UTC midnight) into a Unix timestamp. Unix timestamps count seconds since January 1, 1970 UTC, and many APIs, databases and logs store dates this way.

Date to Unix Timestamp – free online date & time tool illustration
Date to Unix Timestamp — free, exact and private.

How to use the Date to Unix Timestamp

  1. Enter your date, your time.
  2. Results update automatically as you type; you can also press Calculate.
  3. Read the output: unix timestamp (s), milliseconds.
  4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Timestamp = seconds since 1970-01-01 00:00 UTC

Worked example

With date = 2026-01-01, time = 00:00, the Date to Unix Timestamp returns unix timestamp (s): 1,767,225,600; milliseconds: 1,767,225,600,000.

Where the Date to Unix Timestamp helps in real life

You are writing a database query for records after a specific date. Converting the date to a timestamp gives the exact value to use in your filter.

An API needs an expiry time as a Unix timestamp. Enter the date and time and copy the result directly into your request.

Common mistakes to avoid

  • Forgetting the timestamp is in UTC.
  • Confusing seconds with milliseconds.
  • Ignoring daylight saving shifts in local time.
  • Using local midnight when the system expects UTC.

💡 Practical tip: JavaScript uses milliseconds, while many databases and Unix systems use seconds.

Illustration: a workspace with a wall calendar, a clock and a laptop
Date to Unix Timestamp in everyday work — illustration.

Tips for better results

  • Check whether your system expects seconds or milliseconds.
  • Convert local times to UTC first.
  • Use the reverse tool to verify results.

Frequently asked questions

What does the Date to Unix Timestamp do?

Convert a calendar date (UTC midnight) into a Unix timestamp.

How is it calculated?

The Date to Unix Timestamp uses this method: Timestamp = seconds since 1970-01-01 00:00 UTC.

Can you show an example?

With date = 2026-01-01, time = 00:00, the Date to Unix Timestamp returns unix timestamp (s): 1,767,225,600; milliseconds: 1,767,225,600,000.

Is the Date to Unix Timestamp accurate?

Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.

Is this tool free and private?

Yes — the Date to Unix Timestamp is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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