Short:        Daylight Saving Time Determination
Author:       Thomas Winischhofer
Uploader:     thomas winischhofer net (Thomas Winischhofer)
Type:         util/time
Version:      1.00
Architecture: m68k-amigaos >= 2.0

DSTD - Daylight Saving Time Determination utility

A small utility that checks whether or not the current
date/time is within the EU's or USA's DST period.
Comes handy in connection with a NTP client in order to 
calculate the required UTC time difference. The date 
needs to be current before calling the utility, so
a working realtime clock is of essence, or calling
the ntp sync tool once beforehand.

Return code is 10 if DST is active, 0 if not.

Beginning and end dates are 
- EU: Last sundays in March and November;
- USA: Second sunday in March, first Sunday in November.

By default, EU rules are assumed. The command line switch
"USA" puts it in USA mode.

Usage example:
  failat 20
  dstd
  if warn
     ntpsync -d120 ....
  else
     ntpsync -d60 ...
  endif

Version history:
1.00
- Initial release