What you've defined is "core hours". This is the range of time in the day when meetings happen and productivity tends to slow down to a crawl. It sounds like

What you've defined is "core hours". This is the range of time in the day when meetings happen and productivity tends to slow down to a crawl. It sounds like your company's core hours are 9-4. It's fairly standard (some places have core hours being 10a-2p).