Basic time notions Most web applications have to support different time-zones and properly handling time-zones is no way easy. To make matters worse, you have to make sure that timestamps are consistent across various programming languages (e.g. JavaScript on the front-end, Java in the middle-ware and MongoDB as the data repository). This post aims to explain the basic notions of absolute and relative time. Epoch An epoch is a an absolute time reference. Most programming languages (e.g Java, JavaScript, Python) use the Unix epoch (Midnight 1 January 1970) when expressing a given… Read More