Entity Time XEP-202 implementation
Very few clients does support Entity Time in old fashion (XEP-90). Gajim does not support it. It does support XEP-202 with numeric offset instead. But there are few problems.
- Timezone offset in <tzo> flag is used as is custom in python. However, XEP-202 example specifies other way. West of Greenwitch is negative and east is positive. Usually, in other languages we use reversed order. I am in CET time zone and winter time is UTC+1. In XEP-202 is not specified how should be time zone directed, but there is negative number in houston time. That means there should be positive values east of Greenwitch. Python default numbers should be negated.