JSON Date Time Generator – Generate Timestamps
Generate ISO 8601, UTC, and custom formatted date-time values in JSON. Our free JSON Date Time Generator is perfect for mocking timestamps in test data and API responses.
ISO 8601
2024-01-15T10:30:00ZUTC
Mon, 15 Jan 2024 10:30:00 GMTTimestamp
1705315800000Custom
YYYY-MM-DD HH:mm:ssAbout JSON Date Time Generator
Generating consistent date-time values for test data or API mocks can be tedious. This tool creates properly formatted timestamps in JSON format with support for ISO 8601, UTC strings, Unix timestamps, and custom patterns.
How it works
Select your preferred date format and specify how many values you need. The generator creates timestamps starting from the current moment, incrementing by one day for each additional item.
Custom format support lets you define patterns like YYYY-MM-DD HH:mm:ss for specific requirements. The tool replaces pattern tokens with actual date components to match your expected output format.
When you'd use this
You're building a frontend that expects API responses with timestamp fields. Generate realistic date values for mock data without writing date formatting code or relying on external libraries.
This tool generates client-side timestamps based on your local time. For server-side date generation or timezone-specific requirements, you'll need backend logic with proper timezone handling.
Questions
What is ISO 8601 format?
ISO 8601 is an international standard for date-time representation, formatted as YYYY-MM-DDTHH:mm:ss.sssZ. It's widely used in APIs and databases for unambiguous timestamps.
Can I generate past dates?
This tool generates future dates starting from today. For past dates, you'd need to modify the output manually or use a more advanced date generation tool.
What custom format tokens are supported?
Use YYYY for four-digit year, YY for two-digit year, MM for month, DD for day, HH for hours, mm for minutes, ss for seconds, and SSS for milliseconds.
Is the timezone included?
ISO 8601 format includes the Z suffix indicating UTC. UTC String shows the full timezone name. Custom and timestamp formats don't include explicit timezone information.
Can I use this for database seeding?
Yes, the generated JSON can be copied and used for database seeding scripts. Just ensure the date format matches your database's expected timestamp format.