Pentad
A pentad was a Forerunner unit of time. One pentad equalled one-fifth of a Forerunner domestic year.[1] How long this is in relation to Earth time is unknown.[2]
List of appearancesEdit
- Halo: Cryptum (First appearance)
SourcesEdit
- ^ Halo: Cryptum, page 287
- ^ Halo: Cryptum, page 107