help, possible crisis or just hiccup?

ok my single plant grow is in it's 96 day from seed, about 5 1/2 weeks into flower.

my problem is that my light timer skipped the night cycle, i just found out that the light has been on for about 21 hours, so i turned it off but it will come back on as scheduled in 3 hours.

is this going to mess up the buds?
 
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