Unix / Epoch Time Toolkit
Unix timestamp converter, decoded in one place.
Convert Unix timestamps to human-readable dates and back — in seconds, milliseconds, microseconds, and nanoseconds. Fast, private, and 100% client-side.
EpochTools converts Unix timestamps — the numbers computers use to store time — into dates you can read, and back again. Pick a tool below, enter your value, and get instant results. Everything runs in your browser with zero latency and zero data collected.
Epoch → Human Date
Paste any Unix timestamp. The unit is auto-detected from its magnitude.
Auto-detects seconds, milliseconds, microseconds, or nanoseconds. Example: 1735689600
UTC ISO 8601
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Local — auto
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RFC 2822 / GMT
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Seconds Value
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Relative Time
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Feature Suite
Explore All Timestamp Utilities
Specialized standalone converters for ISO 8601 standards, Excel and Sheets serial dates, timezone comparisons, and language recipes.
ISO 8601 ↔ Epoch
Convert strings like 2026-10-02T12:00:00Z to Unix timestamps and back with complete timezone offset handling.
Open Tool →Excel Dates ↔ Epoch
Translate Excel & Google Sheets serial numbers (e.g. 45000.5) into epoch time with 1900 and 1904 date system support.
Open Tool →Epoch Math & Durations
Calculate precise time differences between timestamps or add and subtract custom day/hour/minute offsets.
Open Tool →Year 2038 Problem (Y2K38)
Interactive countdown ticker and 32-bit signed integer rollover simulator showing the jump to 1901.
Open Tool →Timezone Tools & Clocks
Inspect the live Unix epoch timestamp and local time across 40+ global IANA timezones.
Open Tool →Code Snippets Library
Copy-paste recipes for JavaScript, TypeScript, Python, Go, Rust, Java, Kotlin, Swift, PHP, C#, SQL, and Bash.
Open Tool →