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Timestamp & Timezone Converter

Logs, tokens and datasets carry time in different units and zones. Paste a value and the tool detects seconds, milliseconds, ISO strings or natural dates, shows it in UTC, your zone and any zone you pick, and computes differences between two times. A live clock shows the current epoch.

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How it works

01

Paste a time

1727366400, 1727366400000, 2026-09-26T12:00:00Z, or 26 Sep 2026 17:30 IST.

02

Read conversions

Unix seconds and ms, ISO, RFC 2822, local, and a chosen zone; day of week and week number.

03

Durations

Two times give the difference in days, hours, minutes and seconds; add or subtract a duration.

Formats, limits and the numbers that matter

Seconds vs milliseconds

Values above 10 billion are treated as milliseconds; the toggle overrides.

Zones

Uses the browser's timezone database; IST, UTC, and the common cloud regions are one click away.

Formats for code

Python datetime, JavaScript Date, SQL and strftime snippets for the value.

Common questions

Why does my Python timestamp differ from JavaScript's?

Python's time.time() is seconds with fractions; Date.now() is milliseconds. Divide or multiply by 1000.

Leap seconds?

Unix time ignores them, as does this tool.

Can I convert a column?

Paste multiple lines; each is converted.

Next in the workflow

Cron Expression BuilderBuild or explain a cron expression, see the next run times in your timezone and in UTC, and copy crontab or Kubernetes lines.Encoders, Hashes & IDsBase64, URL and hex encoding, JWT decoding, MD5, SHA-1, SHA-256 and SHA-512 hashes, and UUID or ULID generation.JSON Formatter, Validator & Tree ViewerFormat, validate, minify and explore JSON as a collapsible tree, with a path query and error positions.YAML, JSON & TOML ConverterConvert between YAML, JSON and TOML with validation, and see exactly where a config file breaks.