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Date Format Converter

Convert between date formats · several common patterns

Input date

Overview: Date Format Converter takes any parseable date string (ISO, RFC, Unix timestamp, etc.) and converts it to several common formats in one go, such as YYYY-MM-DD HH:mm:ss, MM/DD/YYYY, DD-MM-YYYY, which is handy for integrating with different countries and systems that use different date conventions.

How to use: Step 1 — paste or type a date string into the input (for example 2026-01-01T10:00:00 or a Unix timestamp). Step 2 — the full parsed date is shown when the input is valid; when the format is wrong, a red failure hint appears. Step 3 — the "Formatted results" panel lists several common formats, including ISO 8601, RFC 2822, arrangements with / or - separators, and date-only or time-only short formats. Step 4 — each format has a "Copy" button on the right.

Typical scenarios: Back-end developers handle regional differences between MM/DD/YYYY and DD-MM-YYYY when integrating with services in the US, Europe or Asia; data analysts normalise diverse Excel date formats to ISO; front-end developers verify the output of dayjs / moment / date-fns; log analysis converts RFC 2822 (e.g. Wed, 29 Jul 2026 10:00:00 GMT) to a compact timestamp form; generate date suffixes for filenames (such as YYYYMMDDHHmmss).

Technical notes: The tool uses the browser’s native Date constructor for parsing, supporting ISO 8601, RFC 2822 and some locale strings. YYYY = 4-digit year, YY = 2-digit year, MM = 2-digit month, DD = 2-digit day, HH = 24-hour hour, mm = minutes, ss = seconds, SSS = 3-digit milliseconds. Formatting is based on local time; for UTC use the RFC 2822 row. Slash-delimited US-style inputs may parse differently across browsers, so ISO is the most reliable input.

Privacy: Parsing and formatting run locally in your browser and no date data is uploaded, so it is safe to use with business logs or internal reports.

Frequently Asked Questions

How do I use Date Format Converter?
Step 2 — the full parsed date is shown when the input is valid; when the format is wrong, a red failure hint appears. Step 3 — the "Formatted results" panel lists several common formats, including ISO 8601, RFC 2822, arrangements with / or - separators, and date-only or time-only short formats.
What can Date Format Converter do?
Wed, 29 Jul 2026 10:00:00 GMT ) to a compact timestamp form; generate date suffixes for filenames (such as YYYYMMDDHHmmss ). Wed, 29 Jul 2026 10:00:00 GMT ) to a compact timestamp form; generate date suffixes for filenames (such as YYYYMMDDHHmmss ).
Is my data private when I use Date Format Converter?
Privacy: Parsing and formatting run locally in your browser and no date data is uploaded, so it is safe to use with business logs or internal reports. Privacy: Parsing and formatting run locally in your browser and no date data is uploaded, so it is safe to use with business logs or internal reports.
What technical details should I know about Date Format Converter?
YYYY = 4-digit year, YY = 2-digit year, MM = 2-digit month, DD = 2-digit day, HH = 24-hour hour, mm = minutes, ss = seconds, SSS = 3-digit milliseconds. Formatting is based on local time; for UTC use the RFC 2822 row.