Originally Posted by **avito009** I was reading the proof of E=MC2. In one article it was mentioned that time can be converted to space. |

Time cannot be converted into space anymore than energy can be converted into mass.

The expression E = mc^2 does not mean that mass can be converted into mass. It means that if you have an amount of mass m there is a maximum about of energy E which can result from conversions taking place in the matter. E.g. if a ball of putt absorbs an amount of radiation having an energy E the mass of the putty will increase by the amount m.

In the case of spacetime transformations the spacetime coordinates (x,y,z,t) denote the coordinates of an event, i.e. a place and a time. E.g. a firecracker explodes at the location (x, y, z) at the time t. If this is observed in another frame of reference then the coordinates of the event will be different. That mans that it will happen at a different spatial location at a different time.