Looks OK to me. Dont forget the first one was the forecast for 0000 today so +12 is till today at 1200 but +24 and +36 are for tomorrow then +48 and +60 are for the day after etc
Is it not just the fact that they are only produced daily at 07.30? T+0 is therefore the previous midnight, T+12 the following noon and T+24 the next midnight etc. So, at the moment, T+24 is only an hour and a half away.