Changing veg light cycle?

Hey guys, so my timer broke and I didn't notice right away. My original cycle was at 18 hours and now it has been on for about 25 hours straight. Should I go buy another time or can I just keep it at the 24 a day.manother thing is 2 days ago I transplanted 2 plants do you think the light cycle switch will effect them if I switch to 24 or if I get a new timer . Any advice would help thanks guys

Oh gonna have another 25-35 days of veg if that matters
 
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