Try this - it's a little more involved, but it works.
You will need to divide up the numbers into two layers
First layer has the numbers 10,11,12,1,2,3. When you type these in, add a space before
the number 10.
Second layer has the digits 9,8,7,6,5,4. When you type these in, add a space after
the number 4.
Hint: depending on the font you choose, you may want to replace the 9 with the six or vice versa, depending on how that digit looks.
Next, crop the two layers so that they have the same dimensions. I overlaid the two layers, aligning the dimensions of the text with guides, since you can only crop once.
Now on the layer with the digits 9-4, use Layer > Transform > Flip vertical.
Run pan to bow on both layers, ensure angle is 180..
Again on the layer with the digits 9-4, use Layer > Transform > Flip vertical.
Adjust the layer positions to form a circle.
If you created all the layers transparent, or can make them transparent around the text, you could add an image behind/inside the clock face.
File comment: Pan-to-Bow clockface
clockface.png [ 37.83 KiB | Viewed 1958 times ]
Edit: I just realized, by looking at this and another I attempted, that the font used will naturally have a big effect on the placement of the digits. In the example I posted, since the "face" and the font are so small, you don't really notice that the 9 and 3 digits are above/below a horizontal line that bisects the face through the center. My second attempt used a decorative font with wide zeros, and not only is this effect noticeable, but the number "12", which should be centered at the top is pushed to the side. The "6" is also slightly out of place and the 3-4 gap is too large. See the issues:
File comment: problematic decorative font
Background.png [ 69.02 KiB | Viewed 1950 times ]
I don't know if these are problems that could be fixed by further subdividing the numbers and changing the bow angle accordingly. Example: leave out the digits at the cardinal points of the face and make the bows into short arcs. Something for me to mess with this afternoon.