time-change

Short definition from Wiktionary

Noun

1. 1
   Alternative form of time change.
2. 2
   A change that occurs as time passes, or is caused by the passage of time.
3. 3
   Synonym of time difference.

Verb

1. 1
   To undergo a change as time passes.
2. 2
   To undergo a difference in clocktime between two or more different time zones.