question: static void writeEpochSec ( long epochSec , DataOutput out ) throws IOException { if ( epochSec >= - 4575744000L && epochSec < 10413792000L && epochSec % 900 == 0 ) { int store = ( int ) ( ( epochSec + 4575744000L ) / 900 ) ; out . writeByte ( ( store > > > 16 ) & 255 ) ; out . writeByte ( ( store > > > 8 ) & 255 ) ; out . writeByte ( store & 255 ) ; } else { out . writeByte ( 255 ) ; out . writeLong ( epochSec ) ; } }
target:  Writes the epoch seconds to the stream.