Definition: Eight o'clock.
Two-word phrase without numeral incorporation.
Gloss: SINCE Y-THIS MORNING TIME 8, IX-me FOCUS-on REPORT WORK++(cs) SINCE-then(aah).
English equivalent: I've been working on this report since 8 o'clock this morning.
In ASL, one usually starts with time information in a sentence (though not always). There is an order of information related to time. For example, start with SINCE Y-THIS MORNING TIME 8.