Basically, there's no such thing as keeping up with the Kardashians - no one can do it but them!

These ladies schedules are just jam-packed with facials, shopping, workouts and Starbucks and no one, I mean NO ONE can fit in quite as much as they do in a single day, people!

We caught up with Kourtney at the studio -- putting in some hours at work. Kris went for a facial at the family facialist at Epione Spa. Her b-friend Corey arrived to pick her up (soooo sweet -- he's basically her Uber and her security details rolled into one ... oh, and lover, too). Kylie was out shopping with a pal and did NOT want to be photographed. And Khloe and Kendall met up for some lunch at Nate 'n Al's after KhloKhlo did her daily workout and grabbed some coffee.

Meanwhile, the missing sis Kim is home celebrating the birth of son Saint, but also celebrating having reached the milestone of 55 million followers on Instagram. How'd she celebrate? With a selfie, or course!

All in a day's work, y'all ... all in a day's work!