Pilots often already have their watches set to UTC, so this should be easy. At the exact minute of the winter solstice tonight, at 06:08 UTC, is the second annual Global Orgasm for Peace

To effect positive change in the energy field of the Earth through input of the largest possible instantaneous surge of human biological, mental and spiritual energy.

The web site doesn’t specify that this has to happen in pairs — presumably, it helps the Earth’s [their capitalization] energy field just as well alone or even in groups.

If you need to be behind the controls of an aircraft at 6:08 UTC, however, you might want to substitute eating chocolate.