I'm sorry that i forgot to attached my picture, it's here "http://gnucash.1415818.n4.nabble.com/file/n4716295/week.png" First : i'm using windows 10, GnuCash 3.8 And my time on Windows 10 is correct, only GnuCash wrong -- Sent from: http://gnucash.1415818.n4.nabble.com/GnuCash-User-f1415819.html