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- Week: To use calendar weeks as planning periods. Calendar week starts from Sunday and ends on Saturday. If a project starts not on Sunday, Week 1 will have less than 7 days.
- Month: To use calendar months as planning periods. Calendar months differ in duration, and project periods will have different numbers of days accordingly. If a project starts on other than 1st day, the first period will have less days.
- Quarter: To use calendar quarters as planning periods. Calendar quarters start on January 1, April 1, July 1. , and October 1.
- Half Year: To use calendar half years as planning periods. First The first calendar half year starts on January 1. The second half year starts on on July 1.
- Year: To use calendar years as planning periods.
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