1. Start and end date: in your resume, you can provide the start and end date of your work experience or related experience. The start date is the date when you start your work or related experience, and the end date is the date when you end your work or related experience.

2. Format: The format of the date is usually expressed in the form of year-month For example, from June 1 to February 12 in 2020, it can be written as "2020.05438+0-2022.5438+02" or "2020/0 1-2002".

3. Accuracy: Please ensure that the date filled in is accurate to avoid any confusion or misunderstanding. In addition, according to the specific accreditation body and requirements, other relevant information, such as work unit, position, work content, etc. , should be provided. It is recommended that you read carefully when filling in your resume and fill in the start and end dates according to the requirements of the certification body.