Time On My Side is not something I've seen before.
It also, unfortunately, doesn't fir thematically with the whole thing.
Overall, though, looks fine to me. If anything, a tad underpowered.
A tad underpowered is (in my opinion) the right spot to be for homebrew, so that's good!
As for Time on My Side, I was going for a slight chronomancy undertone with the flavor text, divination, haste, and slow - do you think the time subtheme isn't coming through, or do you just think the time and sand themes don't mesh well?