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51 lines
959 B
Markdown
51 lines
959 B
Markdown
[**pray-calc v2.1.1**](../README.md)
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***
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[pray-calc](../README.md) / getMscIsha
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# Function: getMscIsha()
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> **getMscIsha**(`date`, `latitude`, `shafaq?`): `number`
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Defined in: [getMSC.ts:133](https://github.com/acamarata/pray-calc/blob/4227afc2c3993234794b3a1a561c080edc6d4d4e/src/getMSC.ts#L133)
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Compute Isha offset in minutes after sunset using the MCW algorithm.
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Three Shafaq modes:
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- 'general': blend that reduces hardship at high latitudes (default)
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- 'ahmer': based on disappearance of redness (shafaq ahmer)
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- 'abyad': based on disappearance of whiteness (shafaq abyad), later
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## Parameters
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### date
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`Date`
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Observer's local date
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### latitude
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`number`
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Observer latitude in decimal degrees
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### shafaq?
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`ShafaqMode` = `'general'`
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Twilight type: 'general' | 'ahmer' | 'abyad'
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## Returns
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`number`
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Minutes after sunset for Isha
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## Example
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```ts
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const offset = getMscIsha(new Date('2024-06-21'), 40.7128, 'general');
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// offset ≈ 84
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```
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