Add DateTime.nowAsDate (#4511)

Co-authored-by: Tim <hello@timsmart.co>

Author: 2 people

.changeset/big-suns-roll.md

@@ -0,0 +1,5 @@
+---
+"effect": minor
+---
+
+Add DateTime.nowAsDate creator

packages/effect/src/DateTime.ts

@@ -425,6 +425,22 @@ export const makeZonedFromString: (input: string) => Option.Option<Zoned> = Inte
  */
 export const now: Effect.Effect<Utc> = Internal.now
 
+/**
+ * Get the current time using the `Clock` service.
+ *
+ * @since 3.14.0
+ * @category constructors
+ * @example
+ * ```ts
+ * import { DateTime, Effect } from "effect"
+ *
+ * Effect.gen(function* () {
+ *   const now = yield* DateTime.nowAsDate
+ * })
+ * ```
+ */
+export const nowAsDate: Effect.Effect<Date> = Internal.nowAsDate
+
 /**
  * Get the current time using `Date.now`.
  *

packages/effect/src/internal/dateTime.ts

@@ -299,6 +299,9 @@ export const makeZonedFromString = (input: string): Option.Option<DateTime.Zoned
 /** @internal */
 export const now: Effect.Effect<DateTime.Utc> = core.map(Clock.currentTimeMillis, makeUtc)
 
+/** @internal */
+export const nowAsDate: Effect.Effect<Date> = core.map(Clock.currentTimeMillis, (millis) => new Date(millis))
+
 /** @internal */
 export const unsafeNow: LazyArg<DateTime.Utc> = () => makeUtc(Date.now())
 

packages/effect/test/DateTime.test.ts

@@ -438,4 +438,12 @@ describe("DateTime", () => {
         strictEqual(dt.toJSON(), "2023-12-31T12:00:00.000Z")
       }))
   })
+  describe("nowAsDate", () => {
+    it.effect("should return the current Date", () =>
+      Effect.gen(function*() {
+        yield* setTo2024NZ
+        const now = yield* DateTime.nowAsDate
+        deepStrictEqual(now, new Date("2023-12-31T11:00:00.000Z"))
+      }))
+  })
 })