How to Check the Production Date of a Car from the Glass?

[SanJayden]

There are three methods to check the production date of the car glass: 1. Numbers and dots format: The number represents the year, and the dots represent the month. Dots in front of the number indicate the first half of the year, and the month can be calculated by subtracting the number of dots from 7. Dots behind the number indicate the second half of the year, and the month can be calculated by subtracting the number of dots from 13. 2. Numbers with large and small dots format: The number represents the year, small dots represent the quarter, and large dots represent the corresponding month in the quarter. 3. First line with numbers and small dots, second line with large and small dots format: The number represents the year of glass production, small dots in the first line represent the month of that year, and the second line represents the corresponding days of the month, where large dots represent 10 days and small dots represent 1 day.