Time Lapse photography

Saw someone did the time lapse photography couple days ago, found it kinda interesting and decided to learn and create my own time lapse photography. So overall time lapse photography for my understanding was combining a set of frames to create a short slight moving movie. Someone correct me if i was wrong. So i had bought the intervalometer to perform the interval between each frames taken. I had chose the construction in progress as my subject. But too bad the sky wasn't in blue color today or better said kinda hard to find the clear blue sky in city especially in Kuala Lumpur. I was managed to shoot a little moving clouds, workers and the cranes.