Daylight savings time in DatePlus.
- To: mathgroup at smc.vnet.net
- Subject: [mg124457] Daylight savings time in DatePlus.
- From: W Craig Carter <ccarter at mit.edu>
- Date: Fri, 20 Jan 2012 01:52:04 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
Hello,
I need to account for daylight savings time in list of data representing
each hour in year 2010. I would like to correlate that with other data
taken at 15 second intervals in the same year.
In 2010 daylight savings time in the US began on 14 March 2AM.
DateDifference[{2010, 1, 1, 1}, {2010, 3, 14, 1}, "Hour"] (*1728 hours after beginning of year*)
DateString /@ (DatePlus[{2010, 1, 1, 1}, {#, "Hour"}] & /@Range[1728, 1738])
(*doesn't reflect that 3AM should follow 1AM*)
In hindsight, this is not surprising because daylight savings time
shifts are not standardized intranationally or internationally. I don't
see any clever work-around. Does anyone else?
Craig
W Craig Carter
Professor of Materials Science, MIT
- Follow-Ups:
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- From: "Hans Michel" <hmichel@cox.net>
- Re: Daylight savings time in DatePlus.
- From: "Hans Michel" <hmichel@cox.net>
- Re: Daylight savings time in DatePlus.