Reading Sash::Times

[kosack]

I'm not quite sure the correct way to get the time, e.g. the RunHeader.RunTime. Here is what I tried

import uproot
from astropy.time import Time

with uproot.open(example) as rootfile:
    run = rootfile["run_tree"]
    rh = run["RunHeader"]
    runtime = rh["fRunTime"].array()[0]
    print("RUNTIME=", runtime)

    t0 = Time(
        runtime.fTime * u.s, val2=runtime.fNanosec * u.ns, scale="utc", format="gps"
    )
    print(t0.iso)

RUNTIME= {fTime: 3430316129, fNanosec: 0}
2088-09-17 17:35:11.000

So clearly there is an error, as the time should not be in the future... I also tried format="unix", but that also gives the wrong year. So what is going on here? Also, I'm a bit surprised the nanosecond value is exactly 0, so maybe uproot is not reading the Sash::Time object correctly. If so, how should we read it?