A textual representation of the day and time the Daylight Savings Time adjust should start if enabled (see timeDSTEnable). The format of string is as follows: Byte Meaning 0 Which occurence in the month of the day specified in byte 1. Valid values are: F => First Occurence 1 => First Occurence 2 => Second Occurence 3 => Third Occurence 4 => Fourth Occurence 5 => Fifth Occurence L => Last Occurence 1 A 1-digit field indicating the day of week (0=Sun..6=Sat) 2-3 A 2-digit field indicating the month. 4-5 A 2-digit field indicating the hour 6-7 A 2-digit field indicating the minute 8-9 A 2-digit field indicating the second The default setting is F004020000 which corresponds to the first Sunday of April at 2:00:00 am.