Developer / FREE ONLINE TOOL
Date to Unix timestamp
Convert an ISO date and time into Unix epoch seconds and milliseconds.
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TOOL GUIDE / INSTRUCTIONS & ASSUMPTIONS
Using date to unix timestamp
Convert an ISO date and time into Unix epoch seconds and milliseconds.
- Enter the values or text you want to work with.
- Review the settings and run the tool.
- Review the results and adjust the inputs to compare another scenario.
Example inputs
- Start date and time (ISO 8601): 2026-11-03T09:00:00+05:30
Example result
- Unix seconds: 1,79,36,76,600
- Unix milliseconds: 17,93,67,66,00,000
- UTC: 2026-11-03T03:30:00.000Z
Frequently asked questions
Can I use date to unix timestamp for free?
Yes. This tool is completely free. Grasany account access never adds a subscription or per-use fee.
Where does processing happen?
The interactive tool runs in your browser. File inputs stay on your device. Developers can separately call the documented API for supported text and calculation tools.
What should I check before using the result?
Convert an ISO date and time into Unix epoch seconds and milliseconds. Review the inputs and output, and keep a copy of source files before replacing them.