I typed "seven thirty oʻclock in the evening" and was marked incorrect.
"Seven thirty in the evening" also does not work.
It must be :7:30 in the evening" or "7:30 pm."
I tend to use numbers, but noticed above that RonRGB hyphenated seven-thirty. That might be the thing, as that suggests time, not just 2 numbers. Hmmm.
'Seven thirty in the evening" accepted 11/6/2020 Maybe because you reported it :-)
Well, so pm was not accepted, although it probabyy should be, for rough translation.