periods of time
Durations of existence
Periods of time are intervals or durations—stretches with a beginning and end, or at least a sense of length.
The phrase often appears where *time* alone would suffice: over a period of time means the same as over time.
But specifying the period adds precision: a period of three months, extended periods of time.
In scientific or legal contexts, the fuller phrase signals exactness about duration.
- epochsDistinct historical stretches
- agesExtended time spans
- golden agePeriod of peak prosperity
- instantBriefest unit of time
- fleeting momentTransient instant
split second · intervals · decade · gap year · eras · century · minute · millennium · Middle Ages · Bronze Age · fortnight · ephemerality · transience · month · year · week · hour · circadian rhythm
periods of timeinstants
Infinitesimal time spans
points in time · moments · split seconds · nanoseconds · flashes
periods of timeeternity
Boundless temporal existence
timelessness · infinity · perpetuity · forever · the eternal
period, periods, periodic, periodical, periodically, periodicity, time, times, timed