TimePicker option settings

After searching through this forum, I’ve set the TimePicker extension options in the ‘Advanced’ tab as
{“'minTime”:“8:30am”, “'maxTime”:“7:00pm”, “timeFormat”:“H:i”}

However that doesn’t work.
Any idea what I’m doing wrong?
Thanks

sclg wrote:

{“'minTime”:“8:30am”, “'maxTime”:“7:00pm”, …

You have wrong syntax.

I guessed that!
The entry field is so small i couldn’t see the extra quote characters! Now fixed
Thanks