When does a new week start

A new week typically starts on a Sunday and ends on a Saturday. This is because the International Organization for Standardization (ISO) defines a week as a period of seven days, starting on Monday and ending on Sunday. This is also the convention used by most countries and cultures around the world.

However, it's worth noting that some cultures and calendars may define a week differently. For example, in some Eastern Orthodox Christian traditions, the week starts on Sunday and ends on Saturday. Additionally, some calendars, such as the Hebrew calendar, have a different definition of a week.

In the context of business and commerce, a week is often defined as a period of seven consecutive days, starting on Monday and ending on Sunday. This is because Monday is typically considered the start of the workweek, and Sunday is considered the end of the workweek.

In the context of timekeeping and scheduling, a week is often defined as a period of seven consecutive days, starting on a specific day of the week (such as Monday) and ending on the same day of the week seven days later. For example, the week starting on Monday, March 1, would end on Sunday, March 7.