feat: timezone: init

time/timezone/constants.go

@@ -0,0 +1,9 @@
+// timezone is a static list of timezones. It is incomplete as of now.
+// Eventually it will be autogenerated using the approach as shown
+// here: https://stackoverflow.com/questions/40120056/get-a-list-of-valid-time-zones-in-go
+package timezone
+
+const (
+	TimezoneAmericaChicago    = "America/Chicago"
+	TimezoneAmericaLosAngeles = "America/Los_Angeles"
+)

time/timezone/examples/build_constants/main.go

@@ -0,0 +1,38 @@
+// main this code was sourced from Stack Overflow here:
+// https://stackoverflow.com/a/40130882/1908967
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strings"
+)
+
+var zoneDirs = []string{
+	// Update path according to your OS
+	"/usr/share/zoneinfo/",
+	"/usr/share/lib/zoneinfo/",
+	"/usr/lib/locale/TZ/",
+}
+
+var zoneDir string
+
+func main() {
+	for _, zoneDir = range zoneDirs {
+		ReadFile("")
+	}
+}
+
+func ReadFile(path string) {
+	files, _ := ioutil.ReadDir(zoneDir + path)
+	for _, f := range files {
+		if f.Name() != strings.ToUpper(f.Name()[:1])+f.Name()[1:] {
+			continue
+		}
+		if f.IsDir() {
+			ReadFile(path + "/" + f.Name())
+		} else {
+			fmt.Println((path + "/" + f.Name())[1:])
+		}
+	}
+}