Code of Federal Regulations Title 31. Money and Finance–Treasury § 31.29.105 Computation of time

(1) Annuity accrues on a daily basis;  one-thirtieth of the monthly rate constitutes the daily rate.

(2) Annuity does not accrue on the 31st day of any month except that annuity accrues on the 31st day of the initial month if the employee's annuity commences on the 31st day of a 31–day month.

(3) For accrual purposes the last day of a 28–day month counts as 3 days and the last day of a 29–day month counts as 2 days.

(1) For annuity computation purposes—

(2) In general, 8 hours of unused sick leave increases total service by 1 day. In cases where more or less than 8 hours of sick leave would be charged for a day's absence, total service is increased by the number of days in the period between the date of separation and the date that the unused sick leave would have expired had the employee used it (except that holidays falling within the period are treated as work days, and no additional leave credit is earned for that period).

(3) If an employee's tour of duty changes from part time to full time or full time to part time within 180 days before retirement, the credit for unused sick leave is computed as though no change had occurred.

(1) Under the Police and Firefighters Plan, credit is allowed for no more than 6 months of LWOP in each calendar year.