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Timestamp Converter

Convert Unix timestamps to date/time and back, and calculate the gap between two times.

🔒 Local · no uploadsFree & unlimitedLive clockTwo-way convertDifference calc
Current timestamp

🔢 Timestamp → Date/time

📅 Date/time → Timestamp

⏳ Time difference (how far apart two dates are)

What is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) elapsed since 1970-01-01 00:00:00 UTC — the most common time representation in programming. This tool auto-detects whether your input is in seconds or milliseconds (a 13-digit number is usually milliseconds). Results are shown in Beijing time (UTC+8). The difference calculator is handy for countdowns, project durations or ages, and only supports the 2026-08-28 10:00:00 format.