Comments on: How do I find the date a week starts given the week number http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/ An Irish man's adventures in Web Development Thu, 04 Dec 2008 18:41:41 +0000 http://wordpress.org/?v=2.5.1 By: Ian McCarthy http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/#comment-167 Ian McCarthy Fri, 26 Sep 2008 12:23:03 +0000 http://4o3.net/?p=3#comment-167 No problem Aki, glad it was of help to you. No problem Aki, glad it was of help to you.

]]> By: Aki http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/#comment-166 Aki Fri, 26 Sep 2008 00:08:39 +0000 http://4o3.net/?p=3#comment-166 Thanks a lot, this article inspired me so much. I'm normally a PHP coder but a client asked me to do classic ASP and I have so much trouble getting this same issue with VBScript. Your algorithm works with my ASP. Too bad I've wasted so many hours on Google before jumping into your article. Thanks a lot, this article inspired me so much. I’m normally a PHP coder but a client asked me to do classic ASP and I have so much trouble getting this same issue with VBScript. Your algorithm works with my ASP. Too bad I’ve wasted so many hours on Google before jumping into your article.

]]> By: Donal O'Connor http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/#comment-131 Donal O'Connor Sat, 06 Sep 2008 18:49:01 +0000 http://4o3.net/?p=3#comment-131 I came across a similar problem at begining of Summer. Course I was working in Perl but same principles apply. It was a Lab Management System. It allowed people to reserve Equipment. They'd pick a start date and an end date. That was all fine but I had the problem, what if another user had a reservation in this period. I simply converted all dates to unix time stamps, so id have the least Integer and the Max integer corresponding to Min date and Max date. Then I would check if any other reservation's start/end unix dates lied between these two integers. It really makes life simple! I came across a similar problem at begining of Summer. Course I was working in Perl but same principles apply. It was a Lab Management System. It allowed people to reserve Equipment. They’d pick a start date and an end date. That was all fine but I had the problem, what if another user had a reservation in this period. I simply converted all dates to unix time stamps, so id have the least Integer and the Max integer corresponding to Min date and Max date. Then I would check if any other reservation’s start/end unix dates lied between these two integers.
It really makes life simple!

]]> By: Ian McCarthy http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/#comment-9 Ian McCarthy Fri, 18 Jul 2008 22:45:46 +0000 http://4o3.net/?p=3#comment-9 It is true that it different calender systems handle it differently. I have based this calculation around the ISO-8601 standards which dictate that the week begins on a Monday and ends on a Saturday. The PHP date argument 'W' deals specifically with this date standard. To be honest, I must state that I have no experience dealing with any other calendar systems as the ISO system matches what we use here in Ireland. It is true that it different calender systems handle it differently. I have based this calculation around the ISO-8601 standards which dictate that the week begins on a Monday and ends on a Saturday.

The PHP date argument ‘W’ deals specifically with this date standard.

To be honest, I must state that I have no experience dealing with any other calendar systems as the ISO system matches what we use here in Ireland.

]]> By: Bumbah http://4o3.net/2008/06/25/how-do-i-find-the-date-a-week-starts-given-the-week-number/#comment-8 Bumbah Fri, 18 Jul 2008 22:32:20 +0000 http://4o3.net/?p=3#comment-8 Because of the different calendar systems its not easy to get a good and flexible one. Does the week start on monday or sunday... in a gregorian calendar another calculation. Don;t use weekdays myself that much but I came across www.clndr.org and think it's nice for a quick reference. Because of the different calendar systems its not easy to get a good and flexible one. Does the week start on monday or sunday… in a gregorian calendar another calculation.
Don;t use weekdays myself that much but I came across http://www.clndr.org and think it’s nice for a quick reference.

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