What Does the Date on Car Glass Mean?

[EvaMarie]

The production date of car glass is a crucial aspect to check when purchasing a used car. Here is an introduction about the glass markings: 1. Single row of numbers + dots: The number represents the production year, and the dots represent the month. If the dots are before the number, it indicates production in the first half of the year; if the dots are after the number, it indicates production in the second half of the year. 2. Single row of numbers + dots + dots: In this method, the number still represents the year, the dot closest to the number represents the quarter, and the following dots represent the specific month within that quarter. 3. Two rows of numbers + dots: This method allows reading the exact date. The number still represents the year, the first row of dots represents the month, the second row of large dots represents 10 days, and the small dots represent 1 day. By combining the information from both rows, the date read is the production date of the glass.