Allow set 24h time format for comment

[tos4]

Title
Allow set 24h time format for comments

Short, concise description of the idea
Currently all comments have AM/PM time format and there is no option to configure it

Full description of the idea
Would like to configurable parameter to set time format for displayed comments to Europe common 24h
An ordered list of benefits

• In Europe 24h format is common

An ordered list of problems/issues involved

• AM/PM format is not used in Eastern Europe, we use 24h