TAI64N Timestamp Converter
TAI64N is the timestamp format used by daemontools and secure logging systems: a 12-byte value with 64-bit seconds since 1970-01-01 00:00:10 TAI and a 32-bit nanosecond fraction. Because TAI ignores leap seconds, it is monotonic across them.
This converter renders your date-time as the TAI64N hex value and its decimal components for log analysis and time-sync verification.
TAI64N Timestamp Converter Quick Reference
| Format | Pattern / Description | Example 1 | Example 2 |
|---|---|---|---|
| TAI64N (External) | Atomic Time @40000000... | @400000006a7dd4f2 00000000 | @400000006955b90a 00000000 |
* Examples are rendered in UTC for the fixed sample instants above.
When to Use TAI64N Timestamp
daemontools logging
Decode TAI64N timestamps from `multilog` and `svlogd` logs into readable time.
Secure audit trails
TAI64N provides monotonic timestamps that leap seconds cannot disrupt — verify values in audit systems.
Time sync research
Compare TAI64N values against UTC to analyze the TAI−UTC offset (currently +37 s).
Frequently Asked Questions
What is TAI64N?
A 12-byte timestamp: 64-bit seconds since 1970-01-01 00:00:10 TAI + 32-bit nanoseconds. The +10 s offset distinguishes the TAI epoch from Unix.
What is the difference between TAI and UTC?
TAI is a continuous atomic time with no leap seconds; UTC inserts leap seconds to track Earth rotation. TAI = UTC + 37 s (2026).
How is TAI64N represented?
As 24 hex characters (12 bytes), e.g. `4000000000000000_00000000` = the epoch instant. It is used by daemontools logging tools.
Why use TAI64N instead of Unix time?
Unix time is ambiguous across leap seconds; TAI64N is strictly monotonic and unambiguous, which matters for security and audit logging.
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