Mine was just over two weeks -- about 16 days, IIRC. I ordered in mid-March of this year and got it on March 30, as part of the end-of-quarter rush of deliveries. This time included a change in configuration -- I'd ordered a mid-range, but that configuration was discontinued two days after I ordered it, so I upgraded to an LR RWD (which has now also been discontinued, but not before I got mine).
I don't know if it's still true, but as of earlier this year, Tesla deliveries were more likely near the end of the quarter, which makes for some weird variations in delivery times. The reason was that Tesla would dedicate production to vehicles destined for Europe and China early in the quarter, then shift to production destined for the eastern US and Canada, then work their way westward, closer to the Fremont factory. This way, the bulk of what they produce in a quarter is sold in that same quarter, and usually late in the quarter, given the shipping times. This is apparently good for Tesla's quarterly accounting (I'm not an expert on this subject, though).
Of course, if Tesla happens to have what you want in stock nearby, you can get your car very quickly, much as at other automakers' dealerships. I get the impression that Tesla wants to build up a bigger stock of inventory to make this more the norm, vs. "custom" builds (even though they aren't really all that custom, although it looks that way from the way the Web site is configured). If they've made much progress on that in the last half year, then the preceding description of delivery timing may no longer be valid.