Date formats
Enter a date in any format — see it in all the others immediately. ISO 8601, RFC 2822, DD.MM.YYYY, Unix timestamp and more. Format auto-detection.
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Date converter
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All output formats
Enter a date above — see it in every format
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About date formats
Different systems use different date formats: databases — ISO 8601, email — RFC 2822, Russian documents — DD.MM.YYYY, system APIs — Unix timestamp. Format incompatibility is one of the most common sources of bugs in integrations and parsing.
This tool parses a date from any popular format and immediately shows it in all the others. Paste a string from a log, a database or an email — the converter detects the format automatically.
ISO 8601
International2026-03-08T14:30:00+03:00
International standard. Used in databases, REST APIs, JSON, logs, filesystems. Unambiguous in any country. Alphabetical sort equals chronological sort — great for file names.
RFC 2822 / RFC 5322
Email / HTTPSun, 08 Mar 2026 14:30:00 +0300
Email and HTTP headers (Date:, Last-Modified:). Includes weekday, abbreviated month name and timezone offset. More human-readable than ISO 8601 but harder to parse.
DD.MM vs MM/DD
Beware!03.08.2026 = Aug 3 (US) or Mar 8 (RU)
'Day.month.year' is standard in Russia and most of Europe. 'Month/day/year' is used in the USA. Dangerous when exchanging data across countries: 03.08.2026 reads as 8 March in Russia, 3 August in the US. Use ISO 8601 for unambiguity.
Unix timestamp
POSIX1 741 434 000 = sec since 1970-01-01
Seconds (or milliseconds) since 1 January 1970 UTC (POSIX epoch). Used in logs, databases, JS (Date.now() returns ms), Python (time.time()). Always UTC, timezone-independent — the safest form.