'extended opening hours' is correct and usable in written English.
It can be used to describe a business's choice to open for a longer period of time than usual. For example, "Due to the current situation, the store has decided to implement extended opening hours for the next few weeks."
Q4: all predictors significant at the 99.9% level (p ≤ 0.001) except: deprivation (p = 0.282), contract type (p = 0.037), total hours a practice is open a week (p = 0.938), extended opening hours (p = 0.877).
Q8: all predictors significant at the 99.9% level (p ≤ 0.001) except: gender (p = 0.013), carer responsibilities for anyone in household with long-standing health problem or disability (p = 0.072), contract type (p = 0.526), total hours a practice is open a week (p = 0.011), extended opening hours (p = 0.744).
Q6: all predictors significant at the 99.9% level (p ≤ 0.001) except: carer responsibilities for anyone in household with long-standing health problem or disability (p = 0.988), deprivation (p = 0.053), contract type (p = 0.526), total hours a practice is open a week (p = 0.023), extended opening hours (p = 0.093).
Its government recently legalised dancing on bars, and has extended opening hours.
The Government is embroiled in a row with doctors over extended opening hours.
They suggest that extended opening hours could actually restrict GP access during weekdays.
Extended opening hours from Thursday to Saturday will be from 10 a.m. to midnight.
What the bank is doing NatWest/RBS this week extended opening hours in hundreds of branches.
Many Academies and Free Schools offer extended opening hours, and we want more schools to take up these freedoms.
"One of Cameron's first acts as Prime Minister was to cut Labour's extended opening hours scheme and scrap our guarantee of an appointment within 48 hours".
Many museums have extended opening hours towards the end of the week, giving workers nailed by day to their desks or shopfloors access on Thursday evenings, for example.
