Surin left Bangkok for Singapore at 4.30 a.m. Singapore time.<br>The flight took 2 h 50 min.<br>The journey from the airport to his office was 45 min.<hr> Surin arrived at his office at <input min="0" type="number" id ="imp3pg206q10_1" class="lineinput" placeholder="?" step="0.01" /> a.m.