# computing rise set and twilight

drillable.com › aa-usno-navy-mil › easter › computing rise set and twilight.
As of the index built 10 Sep 2026, 01:10 UTC · [cites, never asserts](/standing).
Source: The Date of Easter, by https://aa.usno.navy.mil.
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## Records (1)

By drillable.com ([llm-extract/1](/standing#methods)); scored precision 1.00, recall 0.11 on the harness's last sample of 35.

- **status** = no single formula can be used to predict times of these phenomena accurately over an acceptably wide range of dates and places · [quote](/r/sha256:ceb453993e7a1a3d924aefc687ea80aabd6d2154e1581f0bc77b1d08f5eeef6c?trace&start=2140&end=2275) · [sha256:63d1a9e8ff0242c2…](/r/sha256:63d1a9e8ff0242c26fc671447797dafce9f8eac317542ba2ec88dde2ead28caf)

Everything here is a record by a named reader, arranged; where readers disagree, both are shown.
No reader has asserted a label for it; the title is its address.

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