When the cutoff is firm
Choose a listed 15-minute game if you have only 30 minutes total. Sushi Go! offers card combinations; Qwixx offers dice and risk; Kingdomino offers a compact spatial puzzle. That leaves some room for getting the game ready.
When you want more planning
Splendor gives you a developing engine of purchases within a listed half-hour. It is a better fit when everyone knows the rules and has enough time to think. Skip it for a strict deadline on your very first play.
Know what travels with you
Check the physical box and playing space before buying for travel. A short duration does not guarantee a tiny footprint. Qwixx also needs score sheets and a writing implement for each player.
Recommendations reflect the listed mechanics and publisher information. Follow each game link for its source, edition notes, and details.