Arithmetic operations on dates ?

[SimPLsol at aol.com]

Michael,
     In Revolution days start at 2 am - except for days that start daylight 
savings time or end daylight savings time, which start at 3 am or 1 am. If you 
are using seconds, these days have one hour more or less seconds than regular 
days.
      In a previous post you said Rev. converted 29 Feb properly to 1 Mar. I 
did not get that result and have not had time to recheck it, I'll let you 
know.
Paul Looney