Are there any fluorophores with lifetimes in the micro to milli second range?
According to the article Indicators for optical oxygen sensors; Michela Quaranta, Sergey M. Borisov, Ingo Klimant


  Among all the indicators that have been used for optical oxygen sensors, Pt(II) and Pd(II) porphyrins are the mostpopular luminophores since they possess strong phosphorescence at room temperature, moderate to high molar absorption coefficients and large Stokes’shifts. Additionally, phosphorescence lifetimes are rather long (microsecond to millisecond) and can be tuned by varying the nature of the central atom.


They then go on to include a table (Table 3 on page 131) of 36 dyes based on that chemistry, 35 with lifetimes in the microseconds and 1 (PdTFPP) with a lifetime of 1.65 milliseconds. 

In relation to my quest for a data source to compare fluorophors I managed to stumble upon the website fluorophores.org that currently includes 952 substances and can be filtered by excitation, emission, quantum yield, and lifetime parameters.