be as honest as the day is long

To be very truthful and reliable. Tom is as honest as the day is long—if he promised to help you move, then he'll be here. Kate would never cheat on an exam—she's as honest as the day is long.

Common Names:

Name	Pronounced	Usage
Lake	LAYK	English (Rare)
Hector	HEK-tər (English)	English, French, Greek Mythology (Latinized), Arthurian Romance
Gustav	GOO-stahf (German)	Swedish, Norwegian, Danish, German
Kurush	-	Ancient Persian
Rexana	rek-SAN-ə	English (Rare)
Raban	-	Ancient Germanic