从格式上来讲，便笺的称呼和结尾谦称部分是比较随意的，可以直接写上他们与我们的名字，省略像Mr., Dear, Sincerely yours等礼貌用语。时间的写法也相对较随意，写星期几或者月日都是可以同意的，同时还可以具体到什么时间钟。
July 20, 2007
Dear Mr. Black:
I am terribly sorry to inform you that I am unable to go to school today owing to a severe headache. I enclose a certificate from the doctor who is attending on me, as she fears it will be two days before I shall be able to resume my study. Could you kindly excuse my absence on Monday and Tuesday? Thanks.
Aug 8, 2007
Fred is now with us. He is going to New York tomorrow morning to pursue his graduate study and we will not be able to see him for a long time. We are having a dinner party at 7 p.m. this evening at my home. It would be nice if you could come over and see him.
Wednesday, January 09, 2008
A friend of yours, Zhang Peng, made a long distance call from Shanghai this morning while you went out. He asked you to book an air ticket for Hebei at 2: 30 a.m., February 8, and make a reservation for hotel room tonight. I am sorry that I can’t pass on the message to you in your presence, because I was ordered to do something urgent.