diff --git a/hrms/hr/doctype/employee_checkin/employee_checkin.py b/hrms/hr/doctype/employee_checkin/employee_checkin.py
index 3b1993ebd1..0ba4a9e814 100644
--- a/hrms/hr/doctype/employee_checkin/employee_checkin.py
+++ b/hrms/hr/doctype/employee_checkin/employee_checkin.py
@@ -241,8 +241,9 @@ def calculate_working_hours(logs, check_in_out_type, working_hours_calc_type):
 				if last_out_log_index or last_out_log_index == 0
 				else None
 			)
+			in_time = getattr(first_in_log, "time", None)
+			out_time = getattr(last_out_log, "time", None)
 			if first_in_log and last_out_log:
-				in_time, out_time = first_in_log.time, last_out_log.time
 				total_hours = time_diff_in_hours(in_time, out_time)
 		elif working_hours_calc_type == "Every Valid Check-in and Check-out":
 			in_log = out_log = None
diff --git a/hrms/payroll/doctype/salary_slip/salary_slip.py b/hrms/payroll/doctype/salary_slip/salary_slip.py
index c26b9a9d01..8e992220eb 100644
--- a/hrms/payroll/doctype/salary_slip/salary_slip.py
+++ b/hrms/payroll/doctype/salary_slip/salary_slip.py
@@ -20,6 +20,7 @@
 	flt,
 	formatdate,
 	get_first_day,
+	get_last_day,
 	get_link_to_form,
 	getdate,
 	money_in_words,
@@ -73,6 +74,8 @@ def __init__(self, *args, **kwargs):
 			"rounded": rounded,
 			"date": date,
 			"getdate": getdate,
+			"get_first_day": get_first_day,
+			"get_last_day": get_last_day,
 			"ceil": ceil,
 			"floor": floor,
 		}
@@ -2158,6 +2161,8 @@ def eval_tax_slab_condition(condition, eval_globals=None, eval_locals=None):
 			"round": round,
 			"date": date,
 			"getdate": getdate,
+			"get_first_day": get_first_day,
+			"get_last_day": get_last_day,
 		}
 
 	try: