sec=0.25
sec=1.25
sec=59.25
sec=60.25
sec=61.25
sec=3599.25
sec=3600.25
sec=3601.25
sec=86399.25
sec=86400.25
sec=86401.25
sec=863999.25
sec=864000.25
sec=864001.25
sec=-0.25
sec=-1.25
sec=-59.25
sec=-60.25
sec=-61.25
sec=-3599.25
sec=-3600.25
sec=-3601.25
sec=-86399.25
sec=-86400.25
sec=-86401.25
sec=-863999.25
sec=-864000.25
sec=-864001.25