Works out to fifty seconds between time marker buoy

[HolyUnicorn]

Hello,

6:45 A.M. Pots coming in very fast. Decide to clock operation while we are still in ten to twelve feet of water. Works out to fifty seconds between time marker buoy is gaffed and the emptied and rebaited pot is returned overboard. In between, the crabber must perform some fifteen separate and sometimes simultaneous actions……

William Warner, Beautiful Swimmers: Waterman, Crabs and the Chesapeake Bay

How can I interpret the part in bold? I have no idea what it means, especially the word "works".

 

[entangledbank]

It works out as . . . = When we calculate it, we find it is . . .

It's an abbreviated style, so not all the right words are there: It is 50 s between [the time that the marker buoy is gaffed] and [(the time that) the . . . pot is returned . . .]

 

[Uncle Jack]

If the writer had written "the time the" instead of "time", I would have found it a lot easier to read.

 

[JulianStuart]

It is a specific collocation/phrsal verb.

work out vb (adverb) (transitive) to solve or find out by reasoning or calculation: to work out an answer, to work out a sum [/QUOTE}

 

[HolyUnicorn]

Thanks, entangledbank, Uncle Jack and JulianStuart. Without your help, I would not have understood it.