News for hackers. Stuff that matters.

A comment on Permanent Daylight Saving Time? Florida Says Yes, but It’s Not So Simple. Parent comment

Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by rwmj on Thursday March 08, 2018 @04:40PM (#16547874)
Or any country, since timezones only have a 1 hour granularity. If you're in Edinburgh (same longitude as Plymouth) this is quite noticable. Be interesting to see the consequences of hyper-local timezones where the sun is always over your head at 12 noon. With modern computing it should be possible to have your watch adjust as you drive east-west ...
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by fergbrain on Thursday March 08, 2018 @04:45PM (#16547926)
Time zones can have any granularity desired. Most are 1 hour, several are 30 minutes (including in India and Australia), and a few are 45 minutes (in New Zealand, for example). There’s no rule though about granularity though.
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by moojd on Thursday March 08, 2018 @04:53PM (#16548010)
From my experience working with date/time I don't think there are any rules at all.
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by ppog on Thursday March 08, 2018 @05:00PM (#16548083)
New Zealand's timezones are full hours, not 45 minutes. You might be thinking of Nepal? (Picky - your broader point is of course right.)
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by sooper on Thursday March 08, 2018 @05:24PM (#16548261)
I think the poster is refering to Chatham Islands timezone[1].

[1] https://www.timeanddate.com/time/zone/new-zealand/chatham-is...

[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by pebers on Thursday March 08, 2018 @05:17PM (#16548213)
Nope, OP is correct - the Chatham Islands are GMT + 12 hours 45 minutes.
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by jjeaff on Thursday March 08, 2018 @04:48PM (#16547949)
There are actually a few 30 minute and I think even 15 minute timezones.
[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by FireBeyond on Thursday March 08, 2018 @05:13PM (#16548193)
And then we need to track lat/longs for every timestamp!

"Says here you arrived at 1.33pm! You were meant to be there at 1.30pm!" "But Sir, look, it was 57 miles east so I was early!"

[ Parent | on HN ]
Re:Permanent Daylight Saving Time? Florida Says Yes, but It’... by asteli on Thursday March 08, 2018 @04:46PM (#16547932)
Most countries agree to use a 1-hour division, but not all. Iran's offset, for example, is +3:30.
[ Parent | on HN ]