Waking up

... and Telemachos went forth through the hall holding his spear, and his two swift dogs followed along. He went of to the place of meeting to join the Achaeans who wear fancy shin guards.

This omen was a real coincidence of course. Around Odysseus people are really busy today, everyone has a task to accomplisch, and so has Telemachos.

Odyssey Book 20 line 103-105 Barry B Powell
Odyssey Book 20 line 126-129 Barry B Powell
Odyssey Book 20 line 136-138 Barry B Powell
Odyssey Book 20 line 141-143 Barry B Powell

Telemachos by Jan Spyka

Telemachos will be away for some time now. It takes 1.5 hours to go up and down to the place of assembly and the meeting will take some time of course. So, he must have left after sunrise at about 8:00 and will be back no earlier than 11:00.
Meanwhile Eurykleia called out the female slaves to clean the house and:

Apparantly it is expected by the woman that, this is the ultimate day that either Odysseus should return or Penelope should remarry. This fits our thesis perfectly.
This is also the perfect omen for Odysseus:

... the good Odysseus rejoiced at the word of the good omen and the thunder strike of Zeus. He thought vengance on the guilty had already begun.

Others, I want to go off to get water from the spring, and bring it back quickly. The suitors will not be away from the hall for long. They will come very early, because today is a festival day for all.

It must be around sunrise, because there are no alarm clocks and there is no light either. The best time to rise from your bed is when the sun does.

The other female slaves in the beautiful house of Odysseus gathered together and stoked up the untiring fire in the hearth. Telemachos rose from his bed, a man like a god, and he put on his clothes.