diff --git a/libs/common/src/constants/working-days.ts b/libs/common/src/constants/working-days.ts
new file mode 100644
index 0000000..d870d3c
--- /dev/null
+++ b/libs/common/src/constants/working-days.ts
@@ -0,0 +1,9 @@
+export enum WorkingDays {
+  Sun = 'Sun',
+  Mon = 'Mon',
+  Tue = 'Tue',
+  Wed = 'Wed',
+  Thu = 'Thu',
+  Fri = 'Fri',
+  Sat = 'Sat',
+}