Consider the following statements: 1) Anadyr in Siberia and Nome in Alaska are a few kilometres from each other, but when people are waking up and getting set for breakfast in these cities, it would be different days. 2) When it is Monday in Anadyr, it is Tuesday in Nome. [2025]

Consider the following statements:

Anadyr in Siberia and Nome in Alaska are a few kilometres from each other, but when people are waking up and getting set for breakfast in these cities, it would be different days.
When it is Monday in Anadyr, it is Tuesday in Nome.

Anadyr (Russia) and Nome (Alaska, USA) are geographically close, separated by the Bering Strait. However, they lie on opposite sides of the International Date Line (IDL). Anadyr is in UTC+12, while Nome is in UTC−9. This results in a 21-hour time difference, so even if it’s morning in both places, it’s different calendar days.

When it is Monday in Anadyr, it is still Sunday in Nome, due to the large time difference and the placement of the International Date Line.

The International Date Line is an imaginary line that passes through the Pacific Ocean. Along the International Date Line, the date changes by exactly one day when it is crossed. A traveller crossing the date line from east to west loses a day, and while crossing the dateline from west to east, he/she gains a day.
Explanation: 180° E is GMT+12 and 180° W is GMT-12, hence the difference between 180° E and 180° W is 24 hours. That is, the time difference on either side of IDL is 24 hours. So, the date changes as soon as one crosses IDL.