Any line that is blank after comment stripping is ignored. FROM Gives the first year in which the rule applies. The word minimum, or an abbreviation, means the minimum year with a representable time value. The word maximum, or an abbreviation, means the maximum year with a representable time value. TO Gives the final year in which the rule applies.
TYPE Gives the type of year in which the rule applies.
If TYPE is - , then the rule applies in all years between FROM and TO inclusively. IN Gives the month in which the rule takes effect. Month names may be abbreviated. ON Gives the day on which the rule takes effect. Table 1-1 shows the recognized forms.