Get the current time as a Julian date in the UTC timescale (which is
problematic)
Julian dates measure time as a continuous number of days since a reference
point far in the past. Dates around the present will be numbers larger than
2.4 million.
Note that it is not rigorously correct to express UTC times as Julian
dates, because it is not well-defined how to handle leap seconds. As such,
the accuracy of time-dependent computations in WWT should only be
trusted to granularities of about a minute.
Get the current time as a Julian date in the UTC timescale (which is problematic)
Julian dates measure time as a continuous number of days since a reference point far in the past. Dates around the present will be numbers larger than 2.4 million.
Note that it is not rigorously correct to express UTC times as Julian dates, because it is not well-defined how to handle leap seconds. As such, the accuracy of time-dependent computations in WWT should only be trusted to granularities of about a minute.