The speed of Padme's yacht is given in AOTC fairly firmly as somewhere in the range of 200-28,000c.
From Tatooine to Geonosis is "less than a parsec," according to dialogue between Padme and Anakin.
The ship leaves Tatooine with no trouble immediately after receiving a message from Mace Windu, standing behind a red sky; a subsequent emergency night Senate session and some discussion between Obi-Wan Kenobi and Count Dooku pass, then we see the ship, presumably fresh out of hyperspace, heading for Geonosis.
The trip could have taken as little as an hour; it is possible, however, that a day or two has passed with Obi-Wan in captivity. Taking the distance as between a light year and a parsec, we arrive at the range of 200-28,000c above.
Yacht went 1250-1750c.