To get some perspective, the LM, which is 5.5m tall, will cast a shadow over a flat plane 31.2m long with a Sun angle of 10°. After less than 2 hours, when the Sun angle is now 11°, the shadow will now be 28.3m long.
From the photos, I would guesstimate about 0.3m of movement of that shadow judging by a point in the shadow that's about half way up the spacecraft, so call it 0.6m for the top of the structure. That's about a fifth of that, which would suggest roughly 20 minutes has elapsed between the first and last frame shown.