Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Weather App with Swift (Retired) Data Modeling With Structures Cleaning Up Our Date

Noah Schill
Noah Schill
10,020 Points
Posted by Noah Schill
Noah Schill
10,020 Points

UTC vs Greenwich Mean Time

Maybe this is just from nationalist British primary school teachers, but I was always taught about Greenwich Mean Time. What is the difference between GMT and UTC? Are they interchangeable (BC AND BCE) I know this isn't a geography forum, but does anyone have any knowledge on the subject?

1 Answer

Gordon Reeder
Gordon Reeder
2,521 Points
Gordon Reeder
Gordon Reeder
2,521 Points

The prime meridain still runs through Greenwich, England. But, the British Royal Observatory, or whatever it's known as, is no longer in charge of worldwide timekeeping. So: UTC.

Noah Schill
Noah Schill
10,020 Points
Noah Schill
Noah Schill
10,020 Points

Thanks mate, cleared things up!