I've changed it so you can give 20 reps in a 24 hour period. There is no "resetting". The forum looks at how many reps you've made in the last 24 hours (i.e. TIME_NOW - (24 * 60 * 60)) and determines whether you've reached your limit.
For instance, assume that at 0:00 on day 1, you made a rep. Then at 10:00 you made a further 19. You wouldn't be able to make another rep until 0:00 on day 2, and then again until 10:00 on day 2.
Hope that helps...
Also, the "system time" is displayed at the top in the welcome box, next to the label "Current Time".
For instance, assume that at 0:00 on day 1, you made a rep. Then at 10:00 you made a further 19. You wouldn't be able to make another rep until 0:00 on day 2, and then again until 10:00 on day 2.
Hope that helps...
Also, the "system time" is displayed at the top in the welcome box, next to the label "Current Time".