テーマ： formatting

• Date and time format tokens: strftime, Java, Go, .NET and Moment/date-fns translated

  The same letter means different things across formatting libraries: Java's uppercase Y is a week-based year rather than a calendar year, and D is a day of the year in Java and date-fns but a day of the month in Moment — a token table to check before trusting a generated format string.

  article · en · reviewed · 知識の基準日 2026-09-25

機械可読： JSON