Derpy's normal day

Ever since Derpy changed the clocks, ponies were rushing to go to work, sign papers, and do lots of other stuff. They worked very fast and tried not to mess up a single thing because it was 1:00, or atleast they thought it was. Derpy was the calmest of all the ponies.
"What are you doing!?" asks Rainbowdash.
"Nothing." answeres Derpy.
"Don't you know the time!?" asks Rainbowdash "It's 1:15! It's almost time for the meeting!"
"Really? Ok." says Derpy.
They flew towards town hall and Derpy, of course, broke the roof of townhall. Rainbowdash and Derpy looked around noticing the mayor wasn't there. The reason was, Derpy didn't change ALL of the clocks. The mayor has a clock that goes off when meetings are held, and it isn't changable.
"Where is the mayor?" asks Fluttershy.
"I don't know but if she ever comes, I will be the first to give her a hoof five, give her a cookie, and even turn on the microphone for her!" said Pinkiepie hyperly.
When the time was 2:00, everyone started to leave. When the time was REALLY 1:00 , everyone thought it was 6:00 pm.
When the mayor showed up, a tumbleweed flew by and a cricket stole a crumb from one of Pinkiepie's cookie.
"Why, where is everyone?" asks the mayor to her guards.
"Maybe the lost track of time." answers one of the guards
Derpy looked out her window and saw the mayor on the stand.
"Oh no, I changed the time!" said Derpy with remembrance.
She started flying around knocking on doors. Nobody came out because they were about to sleep. She then got a strange idea. She took the mayor and started telling her to yell "Meeting now!".
The mayor did so, and everypony finally showed up.