Who gives violence three syllables???
MEEE!! ( 

 ) As a sometimes judge, all I can offer Wazza, is that if I EVER get a punctuated contraction on an entry....it 's binned....
it gives me hives. I bloodywell HATE it. We are entering a competition for 
''Wordsmiths'', are we not? So go find another 
word. Geeze Louise!
Having now spat the dummy sufficiently..........Regarding colloquially contracted words, where I can see the author has a modicum of 
applied talent, & where I can see the author's intention, I allow it. Where there's a Godforsaken apostrophe stuck in it, I do not! I view that as inefficient & lazy. And who wants an inefficient & lazy prizewinner?? For all of eternity the war will rage re whether ''fire'' et al has one or two syllables, so I believe that taking that more lenient approach is the best way to 'judge.'
Now, where you will come unstuck with:
Time is not a problem.
It’s open day and night;
shelves stacked with every
mechanical delight...........is.......
I often see a poem that has the meter quite exact but is 
still a mess. The big problem is often that 
where the stresses fall is awkward....they 
should fall upon the syllable/s that we stress in our normal speech. To 'force' the stress upon a normally unstressed syllable results in 'forced rhyme' &/or 'forced meter'.....aaargh! Words like 'upon' for instance. We speak it as up-
on....NOT 
up-on. ''
Upon 
his horse
 he looked 
grand..'' Gawd! That line is in 
perfect Trochee (Trochaic)...strong, weak, strong, weak etc....but it's bloody awful.
So....your verse is Trochaic & Iambic...(I'll dissect it using 
bold for stressed)
Time is 
not a 
prob lem..............(Trochaic)...strong,weak, strong etc
It’s 
o pen
 day and 
night;...........(Iambic)......weak. strong, weak etc
shelves stacked 
with ev
 er y.......(Trochaic)
mech 
an ic 
al de  
light................(Iambic)
What's happened to '
every'....it's become 'ev 
er y. No one EVER pronounces it that way. Anyway, the simple way around all of this seems to me to be...to simply add one word..'are'.
Time is not a problem.
It’s open day and night;
shelves are stacked with every
mechanical delight. (Pefect meter, perfect stress, & 'every' is perfectly pronounced.) Sorted.
Now.......while I'm still scratching my hives....Mal, you can go straight to your room! TWO 'T's in 'Paterson'.........?? Big smack! (scratch scratch)
Goodo. (I musta had a bit of pent up steam..? 

 )
All my love....
Glenny......................... 
 
.