Minute Difference

Hi,

Here i have a time along with date,
for eg:-  "10/5/2012 5:05:00 AM"

i need to do minus 10 minutes along current date
Like this :- "10/5/2012 4:55:00 AM"

Hi Antony,
Did you get an answer for this?

oldtime<-strptime("10/5/2012 5:05:00 AM",
  format="%d/%m/%Y %I:%M:%S %p")
oldtime
[1] "2012-05-10 05:05:00"
# now subtract 10 minutes (600 seconds)
oldtime - 600
[1] "2012-05-10 04:55:00 EST"

Jim