Term standard

secondary_progression

Definition

Secondary progression: one solar day after birth stands for one year, so the progressed figure is cast at birth instant + age_years days. The arithmetic is on UTC instants, so the wall clock may end up an hour off across a DST change - which the chart records.

中文

出生后每一个太阳日当一岁，故推进盘排在出生瞬间 + 岁数天之上。加法做在 UTC 瞬间上，跨夏令时的墙上时刻因此可能差一小时，这一层写进盘里。

Used by

transit

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