"number of hours" vs "amount of hours"

Question

"number of hours" vs "amount of hours"

Both 'number of hours' and 'amount of hours' are correct, but they are used in different contexts. 'Number of hours' is used when referring to a specific count of hours, while 'amount of hours' is used when talking about the total quantity or duration of time in hours.

Last Updated: March 21, 2024

Use 'number of hours' when you want to specify the quantity of hours in a countable manner, such as 'The number of hours worked this week was 40.'

Examples:

The number of hours spent studying for the exam was significant.
Can you tell me the number of hours it will take to complete the project?
She recorded the number of hours she spent volunteering at the shelter.
The number of hours of daylight decreases in the winter months.
He was surprised by the number of hours it took to drive to the destination.

Alternatives:

quantity of hours
total hours
count of hours
hours worked
hours spent

Use 'amount of hours' when you want to talk about the total duration or quantity of time in hours, such as 'The amount of hours spent on the project was excessive.'

Examples:

The amount of hours required for the training program is 40.
She was surprised by the amount of hours it took to complete the task.
Can you estimate the amount of hours needed to finish the project?
The amount of hours spent commuting each day is exhausting.
He calculated the amount of hours spent on various activities throughout the week.

Alternatives:

total hours
duration of hours
hours total
hours quantity
hours duration

Answer 1

number of hours

This phrase is correct and commonly used when referring to a specific count of hours.

Answer 2

amount of hours

This phrase is correct and commonly used when referring to the total quantity or duration of time in hours.

"number of hours" vs "amount of hours"

number of hours

amount of hours

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