G o'clock
A time that you swear you've never seen before, even though you've lived through it 100 times
"I swear it's 12 o'clock. I didn't sleep last night."
She texted me at 9 o'clock and I replied, 'It's not 9 o'clock. It's 8 o'clock.'
He told me it was 6 o'clock, but I knew it was 7 o'clock because my dog barked at 7 o'clock every day.