[**moon-cycle v2.0.0**](../README.md) *** [moon-cycle](../README.md) / YEAR\_ANCHOR # Variable: YEAR\_ANCHOR > `const` **YEAR\_ANCHOR**: `Date` Defined in: [types.ts:101](https://github.com/acamarata/moon-cycle/blob/800a74670ed6ac7b6d239efd6ec627dbb009fcea/src/types.ts#L101) Anchor date for the yearly cycle: start of the 2023 NASA image collection. The 8,760 images correspond to one per hour for the full calendar year 2023. `cycleYear` measures elapsed time from this reference point. ## Example ```ts import { YEAR_ANCHOR } from 'moon-cycle'; const hours = (Date.now() - YEAR_ANCHOR.getTime()) / 3600000; ```