Index of first time step. Currently not used, always zero.

Number of time steps in the file

Start time in TimeUnit for the first time step in the file.

This can only be set for the equidistant type axes.

For the non-equidistant type time axis this is for information, returning the time of the first time step relative to the start time.

Time axis type. Based on this, the class must implement one of the sub-types.

Unit of time axis.