Date and time
The system works always with UTC time and the APIs return data and time in UTC.
The datetime sent to the system by default is assumed in UTC. If the time zone is different it should be defined explicitly.
Date and time format follows ISO 8601 standard with Z for timezone. When the server reads a timestamp from a request, it expects it to contain the time zone as Z or ±XX:XX.
YYYY-MM-DDThh:mm:ss±00:00