Is it Standard or Daylight time? This scr ipt fills in the correct middle letter of the time zone designation so that either an \"S\" is shown for Standard, or a \"D\" for Daylight time. The first function of the scr ipt may be used independently if you just need to know in which segment of the year a given date/time is. Adjusted for the new 2007 time changes. -Standard or Daylight time This scr ipt fills in the correct middle letter of the time zo ne designation so that either an "S" is shown for Standard, or a "D" for Daylight time. The first function of the scr ipt may be used independently if you just need to know in which segment of the year a given d ate / time is. Adjusted for the new 2007 time chan celebrated.