calendar

Definition

a system for organizing days for social, religious, commercial, or administrative purposes; a chart or notebook showing the days, weeks, and months of a year.

中文 用于组织日期进行社交、宗教、商业或行政目的的系统；显示一年中的日期、周数和月份的图表或笔记本。

Example

"I marked the meeting date on my calendar to make sure I wouldn't forget."