Unable to sync - incorrect time Attention, Daedalus is unable to sync with the blockchain because the time on your machine is different from the global time. You are 21 seconds behind. To synchronize the time and fix this issue, please visit the FAQ section of Daedalus website:"
The solution for Windows 10 ->
Date & Time Settings
Additional date,time & regional Settings
Set the time and date
Restart Daedalus and your good to go