Is it normal for the glass dates to be different when buying a new car?

[SanMargaret]

It is normal for the glass dates to be different when buying a new car, as long as the production date of the glass is earlier than the manufacturing date of the entire vehicle. Car glass is purchased externally and then assembled onto the vehicle. During installation, the glass is randomly installed according to production batches, so having different dates is normal. Here's how to interpret the production date of car glass: 1. Currently, one common method for indicating the glass date in the market is using numbers and dots, where the number represents the year and the dots represent the month; 2. The dots can be placed either before or after the number. Dots before the number indicate the first half of the year, and the month can be calculated by subtracting the number of dots before the number from 7; 3. Dots after the number indicate the second half of the year, and the month can be calculated by subtracting the number of dots after the number from 13.