Fixed timezone comparisons for time-in-force checks.

mango/orderbookside.py

@@ -147,7 +147,8 @@ class PerpOrderBookSide(AddressableAccount):
             node = self.nodes[index]
             if node.type_name == "leaf":
                 expiration = (
-                    node.timestamp + timedelta(seconds=float(node.time_in_force))
+                    node.timestamp.astimezone(timezone.utc)
+                    + timedelta(seconds=float(node.time_in_force))
                     if node.time_in_force == 0
                     else Order.NoExpiration
                 )

mango/orders.py

@@ -20,7 +20,7 @@ import pyserum.enums
 import typing
 
 from dataclasses import dataclass
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 from decimal import Decimal
 from pyserum.market.types import Order as PySerumOrder
 from solana.publickey import PublicKey
@@ -144,7 +144,9 @@ class OrderType(enum.Enum):
 @dataclass
 class Order:
     DefaultMatchLimit: typing.ClassVar[int] = 20
-    NoExpiration: typing.ClassVar[datetime] = datetime.fromtimestamp(0)
+    NoExpiration: typing.ClassVar[datetime] = datetime.fromtimestamp(0).astimezone(
+        timezone.utc
+    )
     id: int
     client_id: int
     owner: PublicKey