Convert Date to Unix Timestamp
When building APIs, setting cookie expirations, or scheduling tasks, you often need dates as Unix timestamps. This tool converts any date and time — with full timezone awareness — to both seconds and milliseconds epoch values.
Open Timestamp Converter →How to Convert Date to Unix Timestamp
- Open the Timestamp Converter on ToolPrime
- Select the date and time using the picker or type it manually
- Choose the timezone for the input date
- Copy the Unix timestamp in seconds or milliseconds
Common Use Cases
- Generate epoch timestamps for API request parameters
- Calculate Unix timestamps for cookie and token expiration
- Set scheduled job times using epoch values
- Convert calendar dates to timestamps for database queries
Frequently Asked Questions
What is the difference between seconds and milliseconds?▾
Seconds since epoch is the standard Unix timestamp (10 digits). Milliseconds (13 digits) is used by JavaScript Date.now() and many modern APIs.
Does the timezone affect the timestamp?▾
Yes, the same local time in different timezones produces different Unix timestamps. UTC is timezone-neutral and most commonly used.