Time interval
temporal extent having a beginning, an end and a duration
moment
Cold War (1947–1953)
Cold War (1953–1962)
midwinter
lunar year
dog days
season
freeze
national day of mourning
historical period
second
phase
Ten Days of Repentance
epoch
Stint
interval
round
time of the day
half-time
Cold War (1985–1991)
window period
round-trip delay time
happy hour
eternity
legislative term
K'atun
high season
delayed diagnosis
break
instant
Dump months
object lifetime
accounting period
pause
legislative session
Period of contribution
subscription period
rotation period
fiscal year
midweek
work week
Greek Dark Ages
delay
Psychological refractory period
data retention
Dark Ages
honeymoon
honeymoon
olympiad
creative phase