Sandbox subscription timestamps are UTC but we're on BST in the UK

Trying to test subscriptions here in the UK, I’m getting times that are an hour earlier than they should be.

Eg. in the below, “event_timestamp_ms: 1715095053830” is 3:17 pm UTC but it was purchased at 4:17 PM BST). This means that my test subscriptions have already expired as soon as I’ve bought them.

I’ve been testing and using this app on RevenueCat for many years now, I haven’t noticed this before?

Is this expected (i.e. do I need to write some test code to adjust the time)??

{

"app_id": "app4ba6172f87",

"app_user_id": "$RCAnonymousID:6e4c865677794230bf7135217c28374f",

"country_code": "GB",

"currency": "GBP",

"entitlement_ids": [

"TPBDCore",

"tpbdinno"

],

"environment": "SANDBOX",

“event_timestamp_ms": 1715095053830,

"expiration_at_ms": 1674173448000,

"is_family_share": false,

"new_product_id": "TPBDInNoMonthly",

"offer_code": null,

"presented_offering_context": null,

"presented_offering_id": null,

"price": 67.89584611756514,

"price_in_purchased_currency": 54.99,

"product_id": "TPBDIaYhAnnually",

"purchased_at_ms": 1674169848000,

"store": "APP_STORE",

"takehome_percentage": 0.7,

"transaction_id": "2000000254420713"

}