Date-time converter
Convert between different date and time formats
Unix Timestamp
Date / Time
Formats
TL;DR
What is Date-time converter?
Date and time conversion transforms a date/time value from one representation to another: between ISO 8601, RFC 2822, Unix timestamps, human-readable strings, and different timezones. Applications often need to parse timestamps from external APIs that use different formats or store times in UTC and display them in local time.
Common use cases
- ‣API integration: convert a date string from an external API into a format your database or frontend expects
- ‣Log analysis: translate Unix epoch timestamps in log files into readable dates
- ‣Timezone normalization: confirm that a UTC time corresponds to the correct local time in a target timezone
- ‣Format debugging: verify that a date string parses correctly before committing it to code
Frequently asked questions
What is ISO 8601?
ISO 8601 is the international standard for date and time representations. The most common form is YYYY-MM-DDTHH:mm:ssZ (e.g. 2026-06-24T14:30:00Z), where T separates the date and time and Z denotes UTC. It is the recommended format for APIs and data interchange because it is unambiguous and sortable.
Should I store dates in UTC or local time?
Store dates in UTC. Display them in local time only in the UI layer. Storing in local time causes problems when servers change timezone, when users are in different timezones, or when daylight saving time shifts occur.