3 ms·
There are only two types of time systems: 1. TAI, and systems that have a fixed 1-to-1 mapping to it (e.g., GPS). 2. Systems that are generally unable to calc
by marshray 8y ago
There are only two types of time systems:
1. TAI, and systems that have a fixed 1-to-1 mapping to it (e.g., GPS).
2. Systems that are generally unable to calculate how many seconds will elapse until your next birthday. UTC is in this category.
Articles like this spend a lot of time on the varying degrees of insanity in category 2. But I would rather start with category 1 and negotiate any additional complexity from there.
- TorKlingberg 8y agoThe exact start of my birthday depends on where will be at the time. It starts and ends at midnight in the current timezone. With some clever time zone jumping my birthday could start twice or more in the same year. Also if I was born on February 29, you need to move it Feb 28 or March 1 on non-leap years.