diff --git a/easyrsa3/easyrsa b/easyrsa3/easyrsa
index 90f0e90..9aeca3f 100755
--- a/easyrsa3/easyrsa
+++ b/easyrsa3/easyrsa
@@ -1652,7 +1652,9 @@ Non-decimal value for EASYRSA_FIX_OFFSET: '$EASYRSA_FIX_OFFSET'"
 		allow_renew_date="$(( now_sec + EASYRSA_CERT_RENEW * 86400 ))"
 
 		if [ "$EASYRSA_FIX_OFFSET" ]; then
-			start_fix_sec="$(date -j "01010000${this_year}.00" +%s)"
+			start_fix_sec="$(
+				date -j -f '%Y%m%d%H%M%S' "${this_year}0101000000" +%s
+				)"
 			end_fix_sec="$(( start_fix_sec + fix_days * 86400 ))"
 			# Convert to date-stamps for SSL input
 			start_fixdate="$(date -j -r "$start_fix_sec" +%Y%m%d%H%M%SZ)"