Transcription
A map of the world with vertical lines marking the time zones from UTC-12 to UTC+12. It has a legend:
Wrong Time
"Natural time zones" are 15° in longitude. Land in red observes a time other than the zone it lies within. Smaller islands depict their 12 nautical mile territorial sea, for visual effect. In some cases this includes a state's archipelagic waters.
Plate Carrée projection, WGS-84 datum. December 2018 © International Mapping, all rights reserved.
Checking the time zone ones (or more like your phone just switching automatically) vs having to remember the offset every time until you've gotten used to it. I'd go with the first one every time