Terms of use

Use of the site

The site is provided for general information. You may use it for personal and commercial reference. You may not scrape it at a rate that harms the service, or present our data as your own.

No warranty

We work to keep times and time zone rules correct, but they are provided as is. Governments change daylight saving rules at short notice. Do not rely on the site alone for safety-critical, legal or financial decisions.

Third-party data

• GeoNames data is licensed under CC BY 4.0.
• Time zone rules come from the IANA time zone database.
• Wikipedia text on the This day in history page is licensed under CC BY-SA.

Liability

To the extent allowed by law, we are not liable for loss arising from the use of, or inability to use, the site.

Changes

We may update these terms. The date above shows the latest version. Continued use means you accept the updated terms.