⏱️ Private · IST & UTC

Timestamp Converter

Convert between Unix timestamps and human-readable times in India Standard Time (Asia/Kolkata) and UTC. All local in your browser.

Unix → human

Human → Unix

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Privacy: This tool runs entirely in your browser. Nothing is uploaded to ITCOH.

Unix time ↔ IST and UTC

Developers often need to translate epoch seconds into India Standard Time (UTC+5:30) or UTC. This converter accepts seconds or milliseconds and can turn a datetime (interpreted as IST) back into Unix.

Frequently asked questions

Seconds or milliseconds?

Values with about 13 digits are treated as milliseconds; ~10 digits as seconds.

What is IST?

India Standard Time, Asia/Kolkata, fixed UTC+05:30 (no DST).

Is data uploaded?

No. Conversion uses JavaScript Date and Intl in your browser.

datetime-local timezone?

The picker has no zone; we treat the wall clock as IST (+05:30) when converting to Unix.