diff --git a/rules/build_electricity.smk b/rules/build_electricity.smk
index 6db8bcd7..2b4d9af6 100644
--- a/rules/build_electricity.smk
+++ b/rules/build_electricity.smk
@@ -588,6 +588,7 @@ rule prepare_network:
         costs=config_provider("costs"),
         adjustments=config_provider("adjustments", "electricity"),
         autarky=config_provider("electricity", "autarky", default={}),
+        drop_leap_day=config_provider("enable", "drop_leap_day"),
     input:
         resources("networks/elec_s{simpl}_{clusters}_ec.nc"),
         tech_costs=lambda w: resources(
diff --git a/scripts/prepare_network.py b/scripts/prepare_network.py
index f38a3619..f7a3f6b0 100755
--- a/scripts/prepare_network.py
+++ b/scripts/prepare_network.py
@@ -204,6 +204,9 @@ def average_every_nhours(n, offset):
     m = n.copy(with_time=False)
 
     snapshot_weightings = n.snapshot_weightings.resample(offset).sum()
+    sns = snapshot_weightings.index
+    if snakemake.params.drop_leap_days:
+        sns = sns[~((sns.month == 2) & (sns.day == 29))]
     m.set_snapshots(snapshot_weightings.index)
     m.snapshot_weightings = snapshot_weightings
 
diff --git a/scripts/prepare_sector_network.py b/scripts/prepare_sector_network.py
index 5757a88b..e5f0dac8 100755
--- a/scripts/prepare_sector_network.py
+++ b/scripts/prepare_sector_network.py
@@ -812,6 +812,10 @@ def average_every_nhours(n, offset):
     m = n.copy(with_time=False)
 
     snapshot_weightings = n.snapshot_weightings.resample(offset).sum()
+    sns = snapshot_weightings.index
+    if snakemake.params.drop_leap_days:
+        sns = sns[~((sns.month == 2) & (sns.day == 29))]
+    snapshot_weightings = snapshot_weightings.loc[sns]
     m.set_snapshots(snapshot_weightings.index)
     m.snapshot_weightings = snapshot_weightings
 
@@ -3660,8 +3664,7 @@ if __name__ == "__main__":
 
     solver_name = snakemake.config["solving"]["solver"]["name"]
     resolution = snakemake.params.time_resolution
-    drop_leap_day = snakemake.params.drop_leap_day
-    n = set_temporal_aggregation(n, resolution, solver_name, drop_leap_day)
+    n = set_temporal_aggregation(n, resolution, solver_name)
 
     co2_budget = snakemake.params.co2_budget
     if isinstance(co2_budget, str) and co2_budget.startswith("cb"):