Deletion of Changes of the length of day

Comment: Given Earth's rotation, ΔT, and related articles, this article is redundant. That would normally suggest a merge, but much of this article seems to be , and the main calculation is clearly  by the article author. With no online references it's hard to sort out the wheat from the chaff. There are other content problems as well (if lunar tidal torque slows the earth,, how can the total angular momentum of the whole system Earth be constant?). -- Special:Contributions/202.124.75.69|202.124.75.69
Stance: delete
Cited policy: Wikipedia:No original research (WP:SYNTH||WP:OR)

Comment: per , the changes of time is a subsection at Earth%27s_rotation covering a subtopic in enough detail to have a separate article. A merger would lose information and prevent the topic from expanding
Stance: keep
Cited policy: Wikipedia:Summary style (WP:SUMMARY)

Comment: possibly a merge/redirect to ΔT would be appropriate. (ΔT is a section link on the Earth's rotation article.) Otherwise, a certain level of redundancy is acceptable in Wikipedia articles (per ), and the article is cited. Regards
Stance: comment
Cited policy: Wikipedia:Summary style (WP:SS)