How to get browser timezone in javascript then convert into .net timezone id

Question

I Just need to know the timezone from client browser then i need to convert some transactions into that client browser timezone. while R&D i understood one thing we cannot get browser timezone from c# so is it possible to get browser timezone using javascript then we can match that with .net timezone?

Answer 1

You are talking about converting IANA timezone to Windows.

IANA timezone: https://www.iana.org/time-zones

You can find an XML containing the IANA -> Windows mapping here

https://github.com/unicode-org/cldr/blob/main/common/supplemental/windowsZones.xml

You can deserialize that XML and look for the IANA timezone to get the Windows one:

<!-- (UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi -->
<mapZone other="India Standard Time" territory="001" type="Asia/Calcutta"/>
<mapZone other="India Standard Time" territory="IN" type="Asia/Calcutta"/>

There's a NuGet package to convert between IANA and Windows timezone

https://www.nuget.org/packages/TimeZoneConverter

You cannot do this conversion on the client side but you can send the timezone name and then convert it on the server.