BlueprintLab ReferenceGlobal · Formats

World date format reference

Compare common date conventions around the world and use ISO 8601 safely for data exchange.

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Same date, different locale

For machine-readable data, prefer an unambiguous ISO-style date such as 2026-08-31. Human-facing formats should follow the user locale.

LocaleRegion / languageExample for 2026-08-31
ja-JPJapanese
zh-CNChinese
ko-KRKorean
en-USUS English
en-GBUK English
de-DEGerman
fr-FRFrench
es-ESSpanish
pt-BRBrazilian Portuguese
hi-INHindi India
ar-EGArabic Egypt

Sources & update policy

Verified: 2026-08-31. This page prioritizes primary standards and official registries. Time-sensitive items should be rechecked against the linked source.