"What is the overall subject of the sentence ""UTC replaced GMT in most places in the world on 1 January 1972""?"
Skewing of time zones Local Time Time difference Time-zone Local time Time zone Standard time zone Time Zones Day of two noons Time Zone TimeZone Time zones Timezone Calculating local time
day of two noons time zones time difference time zone timezone calculating local time standard time zone skewing of time zones local time
time zones
WikipediaEntity
Time zones