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Converting date in milliseconds from 1970 - In excel and other programming language

In the maker model export, the released date and the created date are in the form of a number of milliseconds since the 01-01-1970 12:00am Epoch in UTC time-zone. In order to convert in excel a date format YYYY to a UNiX epoch number of millisecond for all model, I have used the following formula: epochdate = (DateValue(YYYY) - 25569) * 86400 * 1000 Note: This formula also works for model with date prior to 1970. You can also found help to perform this conversion in different programming language using the following website https://currentmillis.com/ Further help can be found in the Connector 1.13 release video at https://youtu.be/PQ6osVe57uw