diff --git a/apps/reports/services/aggregation.py b/apps/reports/services/aggregation.py
index 662c691..a92ceba 100644
--- a/apps/reports/services/aggregation.py
+++ b/apps/reports/services/aggregation.py
@@ -357,6 +357,9 @@ def _entry_payload(entry: TimeEntry) -> dict:
 def _bucket_label(filters: ReportFilters, bucket_date: date) -> str:
     if filters.period in {PERIOD_THIS_WEEK, PERIOD_THIS_MONTH, PERIOD_CUSTOM}:
         return bucket_date.isoformat()
+    if filters.language == "fa":
+        persian_date = jdatetime.date.fromgregorian(date=bucket_date)
+        return f"{persian_date.year:04d}-{persian_date.month:02d}"
     return bucket_date.strftime("%Y-%m")
 
 
@@ -364,6 +367,9 @@ def _bucket_key(filters: ReportFilters, local_dt: datetime) -> tuple[str, date]:
     if filters.period in {PERIOD_THIS_WEEK, PERIOD_THIS_MONTH, PERIOD_CUSTOM}:
         bucket_date = local_dt.date()
         return bucket_date.isoformat(), bucket_date
+    if filters.language == "fa":
+        persian_date = jdatetime.date.fromgregorian(date=local_dt.date())
+        return f"{persian_date.year:04d}-{persian_date.month:02d}", local_dt.date()
     bucket_date = date(local_dt.year, local_dt.month, 1)
     return bucket_date.strftime("%Y-%m"), bucket_date