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Custom Time Format Preview & Pattern Reference

Select from dozens of common time format patterns to preview how your date-time values look in each representation. Enter a date-time below, browse available patterns, and see instant previews. This reference helps you find the right format for your application, report, or system integration -- then switch to the main converter for actual format-to-format conversion.

Try It: Preview Your Date-Time in Different Formats

Preview feature coming soon -- use the main converter for all format conversions.

Commonly Used Time Format Patterns

Format NamePatternExample Output
ISO 8601 (Standard)YYYY-MM-DDTHH:mm:ss.sssZ2025-07-12T14:30:00.000Z
RFC 3339YYYY-MM-DDTHH:mm:ss±HH:mm2025-07-12T14:30:00+00:00
RFC 2822ddd, DD MMM YYYY HH:mm:ss ZSat, 12 Jul 2025 14:30:00 +0000
SQL StandardYYYY-MM-DD HH:mm:ss2025-07-12 14:30:00
US DateMM/DD/YYYY07/12/2025
European DateDD/MM/YYYY12/07/2025
Military TimeHHmm1430
Unix Timestampseconds since epoch1720771200
ISO Basic FormatYYYYMMDDTHHmmss20250712T143000

* Example outputs assume the input date-time is 2025-07-12 14:30:00 UTC.

When to Use Custom Format Patterns

API Responses

REST APIs typically use ISO 8601 or RFC 3339 formats. Choose the right format for your API contract.

Log Files

Server logs often use custom timestamp formats. Match your logging framework specification.

Database Exports

CSV exports and data migration scripts need specific date-time string formats. Preview before exporting.

UI Display

User-facing applications need locale-appropriate date formatting. Choose between US, European, and ISO styles.

Ready to Convert Between Formats?

Use the main Time Format Converter for instant conversions between epoch / Unix timestamps, ISO 8601, RFC 3339, SQL datetime, military time, and 100+ other formats. One click, instant results.

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