Integrated Fantastic coffie (decaffeinated) base version

service/globaltime/globaltime.go

@@ -0,0 +1,21 @@
+package globaltime
+
+import "time"
+
+// FixedTime represent a fixed moment in time. Set this variable to anything different from the default value for
+// time.Time and the value will be returned in Now() function in place of the current time
+var FixedTime time.Time
+
+// Now returns the current time (time.Now()) if no FixedTime has been set. Otherwise, it returns FixedTime.
+// Use this in place of time.Now() to allow testing w/ custom time.
+func Now() time.Time {
+	if FixedTime.After(time.Time{}) {
+		return FixedTime
+	}
+	return time.Now()
+}
+
+// Since returns the time passed since the parameter tm.
+func Since(tm time.Time) time.Duration {
+	return Now().Sub(tm)
+}