[Git][NTPsec/ntpsec][master] Correct reference to NTP rollover

[Hal Murray (@hal.murray)]

Hal Murray pushed to branch master at NTPsec / ntpsec


Commits:
4d7cb864 by Richard Laager at 2025-06-28T02:50:44-07:00
Correct reference to NTP rollover

This will be on 2036-02-07, not 2036-01-08.

See: https://www.eecis.udel.edu/~mills/y2k.html

Another way of calculating it is: 2**32 - 2208988800 = a Unix timestamp
of 2085978496, which is on February 7.

Also, "era 1 rollover" is perhaps ambiguous.  The current era is era 0,
which is rolling over to era 1.

- - - - -


1 changed file:

- docs/rollover.adoc


Changes:

=====================================
docs/rollover.adoc
=====================================
@@ -149,7 +149,7 @@ devices to avionics.
 
 NTP time has a 32-bit cycle with an epoch of 1900-01-01T00:00:00.  NTP
 time is unsigned; the cycle is thus twice that from a signed 32-bit
-counter and the era 1 rollover will be on 2036-01-08.  A detailed
+counter and the rollover to era 1 will be on 2036-02-07.  A detailed
 discussion can be found at
 https://www.eecis.udel.edu/~mills/y2k.html[The NTP Era and Era
 Numbering]. NTP time has a subsecond part in units of 2^-32^



View it on GitLab: https://gitlab.com/NTPsec/ntpsec/-/commit/4d7cb8643212f18d6a6c09a52b91c5d3254613d4

-- 
View it on GitLab: https://gitlab.com/NTPsec/ntpsec/-/commit/4d7cb8643212f18d6a6c09a52b91c5d3254613d4
You're receiving this email because of your account on gitlab.com.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ntpsec.org/pipermail/vc/attachments/20250628/a5a85609/attachment.htm>