Japanese phrase
___はいつまで有効ですか？ ___ wa i tsu ma de yū kō de su ka
Meaning
How long is ___ valid?
When to use it
Asks about the period of validity. It is a polite way to check an expiration date for a pass, card, ticket, or similar item.
Example dialogue
このチケットはいつまで有効ですか？ ko no chi ke tto wa i tsu ma de yū kō de su ka
How long is this ticket valid?
来週の日曜日までです。 rai shū no nichi yō hi ma de de su
It is valid until next Sunday.