How can I change the Universal Time on transit charts?
There’s a trick. Display the transit chart and see that it shows UT: 00:00:00 below the date, in red, in the upper left corner. Now edit the URL in the browser and append. &stx2=vshgmt=16 and press ENTER. You will get the transits for UT 16:00. For setting the minute, you need to use decimal hour fractions, e.g. vshgmt=16.5 will result in 16:30 UT etc.