Hm. May be I wrong...
It's really said
Proof of Stake
Min Age 4 days
But as I remember I hadn't wait 4 days before staking...But it was so long ago...
It used to be 4 days but that changed months ago. Now its 1 day
AFAIK These are the POS specification currently in use:
POS (Phase 2 Started) :
Min age: 2 Hours
Max age: 1 Day
Minted Blocks Maturity: 60
POS phase 2 Start after Block Height: 141350
Stake Interest: Rest of first Year: 20%
Second Year: 10%
Third Year + nYears: 5%
Naturally, the time required for a pile of coins to generate a stake block with success
is not fixed, but as in any coin that uses the POS, it varies greatly, depending on the
value of pile of coin, and the overall condition of the network, and in part by luck.
Bye