From a fellow grower: I have a question about your seeds I see the flowering times but is that just for soil, or hydroponics too? Is it the same for both?
To be honest and fair, no matter where you get seeds from, always add about 2 weeks (at the least) to what the breeder says.
The published flowering time is only an estimate. The actual flowering time will vary from seed to seed and with differing environmental conditions. Plus or minus a week or two (mostly plus LOL) is to be expected.
Whether you are in soil or using hydro will not likely have a significant effect on flowering time.
Same strain, different phenos we can’t forget also
Flowering time is what it is, soil or hydro. Hydro can give you a shorter veg time, but flower time remains the same