Get Local TimeZoneInfo

Question

I am using C#. I need to get the local time zone info for the person running a web application.

I was wondering if:

TimeZoneInfo tzinfo = TimeZoneInfo.Local;
TimeZoneInfo.ConvertTimeFromUtc(result.DueDate.Value, tzinfo);

is appropriate. Again depending on what time zone the person running the application is, I would like that to be reflected.

You said "web application" - are you trying to get the time zone of the *server* or the *client*? — Dan J, Aug 07 '13 at 19:32
Here's how I convert a UTC DateTime into a user's local time for a website. The trick is to get the user (client) to tell the server which timezone they're in, and let the server offset the UTC DateTime into their local time: https://stackoverflow.com/questions/8194016/how-to-get-current-user-timezone-in-c-sharp/30503614#30503614 — Mike Gledhill, Jul 26 '17 at 08:28

score 39 · Accepted Answer · answered Aug 07 '13 at 19:29

39

yes you are right, this is what you should use. Alternative can be

TimeZone localZone = TimeZone.CurrentTimeZone;

but the CurrentTimeZone property corresponds to the TimeZoneInfo.Local property so no difference really.

it displays the names for standard time and daylight saving time for the local time zone.

answered Aug 07 '13 at 19:29

Ehsan

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You may want to clarify that this returns the local time zone of the machine hosting the process and not necessarily the "person who is running the web application". – Mayo Aug 07 '13 at 19:34
Thanks. I am using TimeZoneInfo.ConvertTimeFromUtc on the edited vesion above. Please let me know if this is the best approach. Thank you. – Nate Pet Aug 07 '13 at 19:34
you want cliens time zone info or server? – Ehsan Aug 07 '13 at 19:37
I need to get the user's time zone.. So it will NOT be the time zone on the server. Please advise. Thanks – Nate Pet Aug 07 '13 at 19:50
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it won't be possible without javascript, see http://www.c-sharpcorner.com/uploadfile/vendettamit/setting-your-website-datetime-according-to-time-zone-offset-of-the-client/ – Ehsan Aug 07 '13 at 19:55
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@NatePet You need to unmark this as the answer. You asked if this will give you a web client's timezone and this answer says, "yes", which is incorrect. This code gives you the web server's time zone. – xr280xr May 13 '16 at 15:28
TimeZone is not the same as TimeZoneInfo so although one could argue that CurrentTimeZone 'corresponds' to the TimeZoneInfo.Local, there is a difference. Regardless, the only way to get the timeZone on the client is for the client to post it to you explicitly. The link from Ehsan provides good info. – Rob Von Nesselrode Jan 17 '18 at 21:39
Why is this answer marked as correct answer? It doesn't provide the timezone of person running the application but the server where your website/app is hosted. – vohrahul Jun 07 '18 at 14:29
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Yes, Why the answer marked as correct answer? It's giving the server machine timezone. – Umesh Sehta Sep 13 '18 at 13:27
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From the [docs](https://learn.microsoft.com/en-us/dotnet/api/system.timezone.currenttimezone), prefer `TimeZoneInfo.Local` over `TimeZone.CurrentTimeZone`. It states the reason. – nawfal Sep 20 '18 at 09:20

Get Local TimeZoneInfo

1 Answers1