Program Operations Manual System (POMS)
Basic (09-08)
DI 52170.055 Calendars for Proration (1964-2028)
Use these tables to determine the number of days between two dates to prorate lump
sum payments and derive a daily or weekly rate.
A. Table 1 (1967, 1978, 1989, 1995, 2006, 2017, 2023)
B. Table 2 (1973, 1979, 1990, 2001, 2007, 2018)
C. Table 3 (1974, 1985, 1991, 2002, 2013, 2019)
D. Table 4 (1969, 1975, 1986, 1997, 2003, 2014, 2025)
E. Table 5 (1970, 1981, 1987, 1998, 2009, 2015, 2026)
F. Table 6 (1965, 1971, 1982, 1993, 1999, 2010, 2021, 2027)
G. Table 7 (1966, 1977, 1983, 1994, 2005, 2011, 2022)
I. Table 9 (1968, 1996, 2024)
K. Table 11 (1964, 1992, 2020)
N. Table 14 (1972, 2000, 2028)