Originally Posted By: dougwalkabout

I assume you use standard time (not daylight saving).

For best results use true local time. Everything else might need correction.

Originally Posted By: dougwalkabout
I wonder: if you have a digital watch (or phone) set to local time, would it work to scratch a clock face and hour hand in the dirt?

It sure does. With a piece of string you may even get the hour marks fairly precise.
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