What's the timezone of Easter Island and why?

?--Percy

Nope, no riddle. I just found out it has same timezone as New York (I'm reprogramming how the board handles timezones), just wondering why.Another fun fact: Isla Robinson Crusoe in the Pacific off the Chilean coast is at roughly the same longitude as New York City.--Percy

Google reports the Chilean timezone as -4 and Easter Island as -6.The PHP DateTimeZone database agrees with Google on the Chilean timezone, but not on the Easter Island timezone, which it reports as -5. Current Local Time in Easter Island, Chile agrees with PHP, but of course they'd agree, they're both programs. As Theodoric says, Easter Island's at about the same longitude as western Colorado. Sunrise on Easter Island is around 8 AM these days, about an hour and a half later than New York, but Easter Island is much closer to the equator than western Colorado, where sunrise is nearly 9 AM Easter Island time.--Percy

Love that timezone map. Checking some other locations I found additional mysteries:

• Santiago, Chile, is shown in the -4 timezone, but is currently on -3 time.
  ​
• Brisbane, Australia, is shown in the +10 timezone and has a +10 time, but Sidney, Canberra, Melbourne and Hobart, all in the same +10 timezone, have a +11 time. And they're further west!
  ​
• London, Paris, and Madrid are all in the 0 timezone, but only London has a 0 time. Paris and Madrid have a +1 time. Googling I see that London's on GMT (of course), while Paris and Madrid are on CET (Central European Time).

Can anyone explain what's going on? I'm just curious. The DateTimeZone database I'm using gets all the time offsets right for these cities, but why do timezone maps show cities in different timezones than the ones they're actually using? It can't be Daylight Savings Time, because no region in the world is on Daylight Savings Time yet (DST begins 3/8 in the US, 3/29 in the UK, France and Spain, 4/5 in Melbourne, and Brisbane doesn't use DST).--PercyEdited by Percy, : Clarify.

Doh! It's summer in Australia, of course they're on DST (some of them, anyway).--Percy