The St Lawrence ground outfield was flooded on Monday but had drained remarkably well under sunny blue skies on Tuesday following intense work by the Kent ground staff.
However, the umpires were still concerned about damp patches in and around the square, as well as towards the boundary edge.
There was no play before lunch, with officials bringing forward the interval to 12:30pm (1130 GMT).
Following a further inspection, the match eventually resumed at 2:00pm (1300 GMT).
The afternoon session was set to last from 1300-1450 GMT, with the final post-tea session taking place from 1510-1700 GMT.
Rain meant no play was possible on either Sunday or Monday.
Kent were 39 for one in reply to Pakistan's first innings 168, a total in which Imam-ul-Haq's 61 was the top score.
Uncapped at Test level, Imam's inclusion in the tour squad sparked controversy given the 22-year-old left-hander is the nephew of Pakistan chief selector and former international batsman Inzamam-ul-Haq.
But Imam did his best to change the minds of the doubters with nine fours in a 111-ball innings spanning nearly three hours played in typically English overcast and swing-friendly conditions that favoured the bowlers, with medium-pacer Will Gidman taking five for 47.
Kent were one for one in reply when Hasan Ali, one of the stars of Pakistan's one-day Champions Trophy tournament win in Britain last year, had Daniel Bell-Drummond lbw.
But Sean Dickson (24 not out) and Kent captain Joe Denly (12 not out) saw the hosts through to Saturday's close without further loss.
Although victory for either side was all but ruled out given the time lost in the match, a resumption did at least give Pakistan's bowlers to get some overs in, with Hasan Ali and Mohammad Amir taking up the attack for the tourists when play re-started on Tuesday.
After this match, Pakistan face Northamptonshire before providing the opposition for Ireland's inaugural Test, in Malahide, from May 11-15.
Pakistan then recross the Irish Sea for a two-Test series against England at Lord's (May 24-28) and Headingley (June 1-5).