VDR-Manager

I've analyzed the data flow.

Data flow from server to client

• Timer and Epg data contains no localized time format. Instead the number of seconds since 1970 is sent to the client.
• The client creates Date objects using the transmitted value.
• The dates are formatted for displaying using the local timezone of the android system. So all values shown should be in local time.

Data flow from client to server

• The client constructs the timer string using his local time informations and sends this data to the server
• The servers parses the timer string and creates a timer without any conversion. So the clients local time information are resulting in server timer entries with the wrong (unconverted) time.

Solution

• The client converts his timer input into seconds since 1970 based on the local time of the android system.
• The converted time is sent to the server. A special handling is needed for modified recurrent timers based on day(s) of week.
• The server converts the seconds into his own local time and creates the timer.