根据搜索结果，以下是关于“自己的生日是什么时候”的英语小短文示例，分点整理如下：

一、基础信息模板

My Birthday

Date & Season：明确出生日期及季节（如September 12th, early autumn）

Age：当前年龄（如13 years old）

二、生日庆祝活动

家庭与朋友

- 父母送礼物、蛋糕，举办生日派对

- 邀请朋友聚会，进行游戏、唱歌、跳舞

特别安排

- 早晨留便条提醒家人（如"Today is my birthday, don't forget it!"）

- 家庭茶话会或户外活动（如远足、放风筝）

三、注意事项

时态统一：

描述生日当天活动时使用过去时（如"Yesterday was my birthday"），其他时间用一般现在时

细节补充：可加入天气、礼物类型等细节增强描述生动性

四、示例短文

示例一

" My Birthday

I was born on September 12th, so my birthday is on September 12th. It is early autumn. On my birthday, my parents and friends often give me presents and have a birthday party. I love my birthday and always have a good time on that day."

示例二

" My Birthday

Today is my seventh birthday. I had a delicious western meal with my friends and sister. We ate spaghetti and were blessed by many people. After the meal, we played games and had fun together."

以上内容可根据实际年龄、季节及活动调整，建议优先参考权威来源（如小学英语范文）以确保语言规范性。