| From the Source File | **** | **** | **** | **** | **** |
|---|---|---|---|---|---|
| \Rule NAME FROM TO - IN ON AT SAVE LETTER/S | |||||
| Rule US 1918 1919 - Mar lastSun 2:00 1:00 D | |||||
| Rule US 1918 1919 - Oct lastSun 2:00 0 S | |||||
| Rule US 1942 only - Feb 9 2:00 1:00 W # War | |||||
| Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace | |||||
| Rule US 1945 only - Sep 30 2:00 0 S | |||||
| Rule US 1967 2006 - Oct lastSun 2:00 0 S | |||||
| Rule US 1967 1973 - Apr lastSun 2:00 1:00 D | |||||
| Rule US 1974 only - Jan 6 2:00 1:00 D | |||||
| Rule US 1975 only - Feb 23 2:00 1:00 D | |||||
| Rule US 1976 1986 - Apr lastSun 2:00 1:00 D | |||||
| Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D | |||||
| Rule US 2007 max - Mar Sun>=8 2:00 1:00 D | |||||
| Rule US 2007 max - Nov Sun>=1 2:00 0 S | |||||
| Reformatted a Bit |
| From | To | On | At | Action | **** |
|---|---|---|---|---|---|
| 1918 | 1919 | last Sunday | in March | 02:00 local | go to daylight saving time |
| in October | return to standard time | ||||
| 1942 only | February 9th | go to “war time” | |||
| 1945 only | August 14th | 23:00 UT | rename “war time” to “peace | ||
| time;” clocks don’t change | |||||
| September 30th | 02:00 local | return to standard time | |||
| 1967 | 2006 | last Sunday | in October | ||
| 1973 | in April | go to daylight saving time | |||
| 1974 only | January 6th | ||||
| 1975 only | February 23rd | ||||
| 1976 | 1986 | last Sunday | in April | ||
| 1987 | 2006 | first Sunday | |||
| 2007 | present | second Sunday in March | |||
| first Sunday in November | return to standard time |