Branden Rishel created this map showing only the world’s time zones — without any of the land underneath. It highlights just how unusual these artificial boundaries can be: Just the time zones.

Changing time zones can also strengthen international relations. "Countries might choose a different time zone to be with ...

Zone 2 is just a bit harder than that: an easy jog or a relaxed bike ride, though this varies athlete-by-athlete. ( Eliud Kipchoge's Zone 2 pace would be off the charts for most people.) ...

As mentioned, you’ll see zone 2 runs on your training plan in the form of easy runs and long runs, which typically make up the majority of your mileage for the week. One drawback to zone 2 is ...

iOS: If you know or work with people all over the world, it helps to know what time zone everyone is in. You can easily check different time zones on your phone, but OneTime lets you do this and more.

Zones makes time zone conversions effortless. It’s simple, beautifully designed, and available on your iPhone, iPad, and Mac, so no matter where you are or what you’re doing, knowing the best time to ...