cb
|
time [chronology] |
cb81 []
|
lasting s duration |
cb90
|
as compared with reference entity |
cbX []
|
time years |
cbY
|
present, past and future |
cbYc
|
the past |
cbYn
|
now; present time ↞ cbxprsvxw present day |
cbYu
|
the future |
cbb
|
Big Bang time; Planck epoch |
cbs
|
hundreds of thousands years |
cbsrv
|
Cosmic Dark Age beginning; 370;000 years |
cbv
|
hundreds of millions years |
cbvu
|
Renaissance of the Universe; visible light domination beginning; 600 M years |
cbw
|
billions years |
cbwp
|
Galaxy Epoch beginning; 1 G years |
cbws
|
Hadean Eon; Nectarian Era; 4;500 to 4;000 Ma |
cbwu
|
Acceleration; dark energy domination beginning; 6 G years |
cbwx
|
Solar Era; Solar System formation time; 9 G years |
cbx
|
more than billions years |
cbxb
|
tens of billions years |
cbxbp
|
Archean Eon; origins of life and plate tectonics; 13.4 to 13.55 billion years; 4;000 Ma |
cbxbq
|
Proterozoic; 2;500 to 500 Ma |
cbxpr
|
13 billions years |
cbxprs
|
Phanerozoic; 500 Ma to present |
cbxprsv
|
13.7 billions years |
cbxprsvx
|
13.79 billions years |
cbxprsvxw
|
present day; 13.798 billions years |
Connected classes: |
cbYn
|
now; present time ↞ cbxprsvxw |