my timer stopped working after first day of flowering. What should i do now?

Under a 1000watt hps, I made a dark period of 24h and after switched them to 12/12 and we could see the beginning of the flowers (pale green on the top of some leaves) . But when i was back from work, the light was still on so it was on for 24h and the pale green leaves are not pale anymore... So what should i do now? Make another dark period of 24 hours and then switch them back to 12/12? or Just switch them back now?

Im wondering if this can cause any problems, stress or whatever because of that. Thanks for your help.

Don't sweat it.

Just go back to 12 / 12.