What's your shortest time in the wasteland to acquire a legendary weapon?

Yesterday I sent Jericho out to the wasteland. I check on him 30 minutes later and he's toting a Lead Belcher! He grabbed it out of a locker during the very first minute of exploration!

I have 200 dwellers, 1/3 have full 10/10 stats, at this moment 10-12 dwellers patrolling wastelands for 2,5-3+ days. No one legendary found in wastelands during all time.

Finding one right away is the 'Time Glitch'. That's the only way I've ever gotten one exploring the wasteland.

Nope no "time glitch" here, just luck of the draw. I'd never risk fracking all of my calendar reminders.

16 seconds, I got a rusty minigun and grabbed a screenshot but don't think I can upload it

There's a time glitch that doesn't use changing your device's clock. If you force quit or have a game crash right before a item drop the game thinks you've been exploring for the maximum possible time and drops something from the super rare loot table.

I send my dwellers out for days at a time. The only time I bring them BACK is when they run out of Stim Packs or are nearly out. Anyone I send out has Maximum SPECIAL stats and the best armor I can outfit them with. Thus far the ONLY legendary stuff I have found is from Lunchboxes I have purchased. I've never found any legendary stuff while exploring the wasteland.