Because sushi and sashimi are consumed raw, the bacteria may grow and become dangerous if left out. Thus, regardless of any dates, you should NOT eat sushi or sashimi beyond their 24 hour expiration.

How long does it take for sashimi to go bad?

If the sushi has raw fish, it is okay to take home some leftovers and store them in a refrigerator up to 24 hours. The taste and texture of the sushi may change (e.g. softer sashimi, limp seaweed paper, harder rice), but there should be no harm in eating it 24 hours after it was made.

Can you eat 3 day old sashimi?

(In general, raw fish that's refrigerated is safe for three days. Sushi made from cooked fish or vegetables can be eaten up to a full week after it was made if it's stored at or below 41º F, or about five days if your home fridge is set to a warmer 45º F.)