Peach Points shall be valid and in force for a period of 180 days commencing on the day on which such Points are issued.There is no restriction on the travel dates of a new booking paid with Peach Points as long as the Peach Points are valid.
The validity deadline is marked in the email that sent along with the Peach Points.

Please check the link below when you have not received the e-mail or have lost it.
「What should I do when I don't receive the Peach Points by email or when I have lost the Peach point number.」

Please see below for more details about Peach Points.
「I would like to know about Peach Point.」