Different rosters depending where you are in Oz. Our TCU has 7½ hr shifts, average 14 per 21 days. Usually one or two weekends off a month. 10 hours between rostered shifts. 5 weeks rec leave (conditional on working 10 Sundays). Some centres have well defined shift patterns, ours tend to be a little random. Manual rostering mostly avoids split weekends.
Could be 3 on 1 off, 4 on 1 off, 5 on 2 off, occasional 3 day breaks, etc
1230-2000
0600-1330
0540-1230
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-
-
0630-1400
0540-1230/2230-0600
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0540-1230
0600-1330
0540-1230/2230-0600
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1530-2300
1500-2230
1400-2130
1400-2130
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0540-blah blah