Good question...
IMHO
In Europe (esp the Nordic countries) some are /have implemented the
4 days work week. The main jist of it is to have a more balance
work/leisure lifestyle.
This is a different aim from the reason y Philipines r implementing
it. Due to their deficit, they have to reduce the govt spending and
therefore come up with this idea (not really good, but that is
another discussion).
Overall, SGP is heading that way... however, will it be done in the
next 5 yrs? Unlikely at all. Y? The kaisu nature of SGPrean. No one
would want to noe that they are resting... becos it equate to
slacking.
So in the meantime, the govt is atvocating work/leisure balance
whereas the workers are trying hard to cover for loss time (
personal overtime,work at home).
Conclusion: Unless the work culture is change (from an efficient
and no nonsense work place to one which emphase work and leisure
balance ... a semi welfare state), it is unlikey that i can be
implemented.