function for date difference ?

On Thursday 6 July 2000, at 9 h 59, the keyboard of jprem <jprem@srmsoft.co.in>
wrote:

is there any built-in function to find the difference between any two
dates
in postgresql 6.5.3 ?

You already asked this one week ago on the same mailing list and I already replied. I you cannot read replies, do not ask questions.