The story placed on a different planet, so their time vary from the Earth's.
1 minute = 100 seconds
1 hour = 50 minutes
1 day = 20 hours
1 year = 389 days
Following this 10 PM is noon and 10 AM is midnight. There are 13 months, they have 30 days, only the last one have 29.
Seasons: winter 1 months - spring 4 months - summer 4 months - autumn 4 months long