Time

All social functions (school, work, etc) should be measured relative to the local sunrise. For example, your office job might start at S+2 hours and end at S+10. You go to bed at S+18.

This would allow everyone to maintain a good circadian rhythm year-round instead of getting noticeably out of sync in the height of summer or, especially, the depths of winter.

Nations could still maintain time zones for local coordination purposes, with the standard sunrise for a time zone set to the actual sunrise in the geographic (or population) midpoint of that zone.

We also need an improved calendar. The current system of 12 months of varying lenghts is self-evidently nonsense. Instead, we should designate the 5-day period from the winter solstice to Christmas as an intercalary period. The remaining 360 days can then be evenly split into four 90-day seasons and twelve 30-day months. January would start on our current December 26, and December would end on our current December 21.

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