Very basic date, but doesn't use the unix format.

date/.gitignore

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+date
+date.exe

date/Makefile

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+
+
+build:
+	go build .

date/go.mod

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+module lcthw.dev/go/go-coreutils/date
+
+go 1.24.2

date/main.go

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+package main
+
+import (
+  "fmt"
+  "time"
+  "flag"
+)
+
+func main() {
+  var result string
+  var universal bool
+
+  it_is := time.Now()
+
+  flag.BoolVar(&universal, "u", false, "UTC time.")
+  flag.Parse()
+
+  if universal {
+    it_is = it_is.UTC()
+  }
+
+  if flag.NArg() == 1 {
+    result = it_is.Format(flag.Args()[0])
+  } else {
+    result = it_is.String()
+  }
+
+  fmt.Println(result)
+}