Half a day's salary was deducted

Since Stella agreed to have dinner with him tonight, Tristan didn't stay any longer and let her go! When Stella come back to the company, it was 1:30 p.m. Because it was still lunch break all the secretaries of the secretarial office went out to have lunch. She was the only one here! "Stella." Stella had just sat down when the head Secretary come from outside and called her. "The company had an emergency that required you to come back to the company. Since you are half an hour late, half of your salary today will be deducted!" Stella was speechless. Was she late? Wasn't it just 1:30 p.m.? Stella pointed at the time on her phone screen and said, "Secretary General, it's only 1: 30. pm. There is still half an hour before the lunch break is over, how I am late?" The Secretary-General shook her hand indicating that she don't know anything. "The president said that today you didn't have a lunch break. He asked you to come back and deal with some business. However, Since you don't come back