On Tue, May 12, 2009 at 6:31 PM, Jeremy Olliver <jeremy.olli...@gmail.com> wrote: > On May 12, 10:57 am, Randall <callmenanner...@gmail.com> wrote: >> Seems like there should be an easy solution to this problem, yet I >> can't seem to find one. >> >> Here is the issue: >> How do you assign a time zone to a Time object that results from a >> parsed date/time string? >> >> Example: >> - I receive a date time string from a date picker widget that does not >> include time zone info (i.e. "Mon May 11 18:24:37 2009"). >> - Time zone for this date is known and may be different than what's >> local to the user >> - date/time is stored in the DB as unix time (i.e. 1242075962) >> - time zone is stored in the DB in tz format i(i.e. 'America/ >> New_York') >> - I would like to be able to take a given date with its known time >> zone and calculate the equivalent unix time value. ... >> >> It seems there should be a way to append the time zone to the string >> before it is parsed or to associate the parsed time with a time zone >> (without converting the time to the zone), however I can't seem to >> find an answer. >>>
> The time zone is encoded in the string at the end e.g > > Mon, 11 May 2009 18:24:37 +1200 > Is in a time zone that's +12 (12 hours ahead of utc) > DateTime.parse or Time.parse will read this correctly. > > So what you're doing is using a js date picker that gives you a string > like "Mon May 11 18:24:37 2009" > You just need to append the time zone difference to "Mon May 11 > 18:24:37 2009 +1200" etc before parsing. Careful here, there's a diference between a time zone like "America/New_York" and a time zone offset http://www.w3.org/TR/timezone/ > > I handle storing dates in the db a little differently than you, but if > you know what you're doing don't worry about changing that part. > I usually store dates in the db in utc format (I think you can > configure this in environment.rb from memory), and you can easily set > the user's timezone in a filter in application controller > Time.zone = user.time_zone > which will handle all of the conversions for you. Or to convert to an arbitrary timezone Time.at(unix_time).in_timezone('America/New_York") -- Rick DeNatale Blog: http://talklikeaduck.denhaven2.com/ Twitter: http://twitter.com/RickDeNatale WWR: http://www.workingwithrails.com/person/9021-rick-denatale LinkedIn: http://www.linkedin.com/in/rickdenatale --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
