Problème de LED via timer

Bonjour je suis actuellement en terminal STI2D, et pour mon projet de bac je dois rendre un aquarium automatique. Je suis charger de LED et je dois faire allumé la LED de Heure X a heure Y. Le problème vient des minutes et du systeme d'heure qui part en truc bizarre.
-Je m'explique pour les heures ma LED s'allume quand je le dit (par exemple il est 10 heure j'ai programmer ma LED pour qu'elle s'eteigne à 8 heure et quel reste allumé jusqu'a 11 heure cela fonctionne. Mais si je lui d'eteindre à 8 heure et quel reste allumé jusqu'a 10 heure cela ne fonctionne plus.
-Pour les minutes un peu le même problème mais il y a aussi le fait que si la lumière s'eteint à 15h30 et s'allume a 14h45 il considere 14H45 comme plus grand que 15H30.
Donc voila mon problème : comment resoudre ces 2 problematique ?
ps : oui je sait qu'il sont debrancher
Merci d'avance

En gros je pense qu'il faut comparer des grandeurs en minutes. Donc par exemple 13h45 = 13*60+45 = 825. De même 14h30 = 870 (qui est bien plus grand que 825).
Pour minuit, il y a effectivement un cas particulier à gérer... C'est votre excercice, et c'est la partie la plus intéressante. Je veux bien aider pour débloquer les problèmes techniques, mais là il vous faut trouver l'algorithme adapté...
Bonne continuation
Francis M | Voir mon profil
Certified LabVIEW Developer

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Problème de LED via timer

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