When I import a Bitcoin or a Litecoin wallet by public address, it imports the timestamps 1 hour off. Other wallets import the times correctly.
Status
Inaccurate data (timestamp 1h off) happens for
some
older transactions (usually before 2019) and is a fault of our API provider. Since it affects only some transactions, we cannot account for this automatically. We are in contact with the API provider but so far they didn't manage to fix the data issue.