Birdor Tools · Time
Timestamp ⇄ Datetime Converter · Birdor Tools
Convert Unix timestamps (seconds or milliseconds) to human-readable dates and back again. View results in local time, UTC, or a custom timezone with ISO 8601 and RFC3339 output — all running locally in your browser.
Input
Enter a Unix timestamp in seconds or milliseconds. Auto-detect is default.
Interpret as:
Presets
Offset
Adjust the current datetime without retyping.
Timezone
Affects display only. Unix timestamps are timezone-agnostic.
Human-readable datetime
Effective display timezone: UTC
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Compare timezones
Local
—
UTC
UTC
—
UTC
Custom
—
Asia/Shanghai
ISO 8601 (UTC)
—RFC3339 (UTC)
—Unix timestamps
Derived from the datetime above (timezone-independent).
Seconds
—
Milliseconds
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TIP: Switch timezone display above to quickly understand cross-region logs.