time calculation

The new year is close to these countries but not in 2018
Almost everything is relative and time is no exception. People create calendars to measure time.
Why does 1 hour have 60 minutes, 1 minute has 60 seconds and 1 day has 24 hours?
Today, 60 minutes a day with 24 hours or 1 hour is a very normal convention that everyone knows.
GMT time may be replaced
The world's leading scientists are meeting in the UK to consider the possibility of replacing GMT by other timers.