Reduced Work Week and Compressed Work Week are a (relatively) new concept that some Annualised Hours Contract workplaces are doing
Reduced: You work 4 days of 7.5 hours, adding up to 30 hours weekly, you get paid the same as if you worked 5 days of 7.5 hours (37.5 hours)
Compressed: You work 4 days of 9.5 hours, adding up to 37.5 hours weekly, you get paid the same as if you worked 5 days of 7.5 hours (37.5 hours)
That and, depending on your commute at the end of the day, may only have enough time to prepare and eat dinner before needing to go to bed.