Source-Changes-D archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: CVS commit: src/lib/libc/time



Just to show how complicated the subject of timezones really is, here
are a couple of interesting quotes from the wikipedia article on International Date Line

	Two uninhabited atolls, Howland Island and Baker Island, just
	north of the equator in the central Pacific Ocean (and ships
	at sea between 172.5W and 180) have the latest time on Earth
	of UTC-12 hours. The IDL circumscribes Kiribati by swinging
	far to the east, almost reaching the 150 meridian. Kiribati's
	easternmost islands, the southern Line Islands south of Hawaii,
	have the most advanced time on Earth, UTC+14 hours. ...

	For the two hours between 10:00 and 11:59 (UTC) each day,
	three different days are observed at the same time in different
	places. For example, at UTC time Thursday 10:15, it is
	Wednesday 23:15 in American Samoa, (UTC-11), and Friday 00:15
	in Kiritimati (UTC+14). For the first hour (UTC 10:00-10:59),
	this is true for both inhabited and uninhabited territories,
	but during the second hour (UTC 11:00-11:59) it is only true in
	an uninhabited maritime time zone twelve hours behind UTC
	(UTC-12).

+------------------+--------------------------+-------------------------+
| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:       |
| (Retired)        | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com    |
| Kernel Developer | 0786 F758 55DE 53BA 7731 | pgoyette at netbsd.org  |
+------------------+--------------------------+-------------------------+


Home | Main Index | Thread Index | Old Index