All-day (adjective)

Lasting or intended to last the whole day.

Origin:

Mid 19th century: from all + day.

Examples:

1. She had an all-day meeting with her boss.
2. He went on an all-day hike in the mountains.
3. The park was hosting an all-day music festival.
4. She needed an all-day battery for her phone.
5. The conference was an all-day event with speeches and workshops.