Through my gambling career I have never noticed or experienced, that on some particular part of day or hour I win more often. However, I can suppose, that if OP gambles with sports bets and win during 13:00-14:00 more often, then it is because amateur or less professional teams or athletes play at that time, making it easier to predict favorite. For example if we take football, then all top league game matches usually happens on the evening. While during lunch time, regional or U18 teams usually play for example. Their skills are not as high as for example Premier League top5 teams, and by looking on gameplay, it is easier to stop who is stronger and bet on that team.