Published: July 31 2013
C# - Get time zone and UTC offset from latitude and longitude (GPS coordinates)
I recently set up an Instagram feed for a travel blog and found that the Instagram API only supplies the UTC created date/time of each image, and doesn't supply the user's UTC Offset (as the Twitter API does), so the only thing you have to work with are the latitude and longitude (lat/long) coordinates to find out the timezone and UTC Offset of where the image was posted.