The IEC61850 data type Timestamp is an 8 byte value where the first 4 bytes indicate the seconds since 1/1/1970 00:00:00. The next 3 bytes represent the fraction of a second. The last byte contains various quality flags (including time accuracy).

The timestamp is displayed in the IEC 61850 Symbol Browser in the format "dd.mm.yyyy hh:mm:ss.ms".

ibaPDA does not internally support a Timestamp data type. In order to still be able to measure time information, e.g. for checking the latency period and the jitter of IEC 61850 data, the seconds and milliseconds fraction is acquired from a Timestamp as a float value.