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Конвертер ISO 8601

Форматирование дат в международный стандарт ISO 8601 и их парсинг.

Parse an ISO 8601 string

Accepted: date-only · T separator · optional seconds and fraction · Z or ±HH:MM offsets.

Build an ISO string

Как это работает

  1. ISO 8601 writes one moment as YYYY-MM-DDTHH:MM:SS plus an optional fraction and offset; Z means UTC, and +05:30 means local time 5 h 30 m ahead of UTC.
  2. Parsing: strings with an offset identify one exact instant; the tool normalizes them to UTC, shows the Unix timestamps, and renders the instant in UTC and your local zone.
  3. Building: your date, time and zone are resolved to an instant (daylight saving included), then emitted with that zone’s offset, plus the UTC (Z) form and Unix seconds for cross-checking.

Полезно знать

  • Offset-less strings (2026-10-28T14:30:00) are shown as written with both the UTC and your-zone interpretations, never silently assumed to be one or the other.
  • Date-only strings (2026-10-28) are reported as dates; the implied midnight zone differs across systems, which the tool states rather than guessing.
  • RFC 3339 is the internet profile of ISO 8601 that APIs actually use; strings like 2026-10-28T14:30:00Z satisfy both standards.
Инструменты временных метокПопулярное

Конвертер Unix Timestamp

Перевод меток Unix в даты и дат в таймстампы в секундах или миллисекундах.

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Unix Timestamp в дату

Преобразование числовых меток времени в понятную дату в UTC и местном времени.

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Дата в Unix Timestamp

Преобразование любой даты и времени в секунды и миллисекунды эпохи Unix.

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Конвертер таймстампов в UTC

Преобразование меток времени напрямую в дату и время по чистому стандарту UTC.

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Часто задаваемые вопросы

What does the “Z” in an ISO string mean?
Zulu, meaning the string refers to UTC. 2026-10-28T14:30:00Z is 14:30 UTC. A string with +02:00 instead describes local time two hours ahead of UTC; both denote a precise instant.
What if my ISO string has no offset at all?
Then it is ambiguous: 14:30 somewhere, but where? The tool shows it as written and explains that an offset (or Z) is required to pin down an instant, rather than silently assuming one.
Is ISO 8601 the same as RFC 3339?
RFC 3339 is an internet profile of ISO 8601, representing a subset with a fixed layout. Strings like 2026-10-28T14:30:00Z satisfy both specifications.