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1h = 60 minutes donc 1h 57 = 60 +57 = 117 minutes
1 semaine = 24 h x 7 = 168 heures = 168 x 60 = 10080 minutes
3 jours = 24 h x 3 = 72 heures = 72 x 60 = 4320 minutes
2 h = 2 x 60 = 120 minutes
donc 1 semaine 3 jours et 2 h = 10080 +4320 +120 = 14520 minutes

1 minute = 60 secondes
donc 18420 secondes = 18420 / 60 = 307 minutes