An epoch is longer than an era. An epoch can last for more than one lifetime.
An epoch, an era, or an age.
Millennium (1000 years)
The plural is epochs.
AH stands for After Hijra. CE stands for Civil Epoch (the zero date of the Islamic calendar)
Christian. Era
We live in the Cenozonic Era and the Holocene Epoch.
Paleocene epoch
epoch - era
Epoch is an age signifying change, a new era. Hence, it has no active antonym.
era,epoch, and period are periods of time that happen in the past
Epoch
In geology, an era is a greater unit than an epoch. Elsewhere the two words are synonymous.
How long is an epoch? Longer than an era but shorter than an age of course!
Era.
Paleocene Epoch
The Cenozoic Era
We are in the Cenezoic Era, the Quaternary Period, and the Holocene Epoch.