diff --git a/src/main/kotlin/com/android/trisolarisserver/controller/IssuedCards.kt b/src/main/kotlin/com/android/trisolarisserver/controller/IssuedCards.kt
index e618b57..688dbc9 100644
--- a/src/main/kotlin/com/android/trisolarisserver/controller/IssuedCards.kt
+++ b/src/main/kotlin/com/android/trisolarisserver/controller/IssuedCards.kt
@@ -25,6 +25,7 @@ import org.springframework.web.bind.annotation.ResponseStatus
 import org.springframework.web.bind.annotation.RestController
 import org.springframework.web.server.ResponseStatusException
 import java.time.OffsetDateTime
+import java.time.ZoneId
 import java.util.UUID
 
 @RestController
@@ -58,7 +59,7 @@ class IssuedCards(
             throw ResponseStatusException(HttpStatus.CONFLICT, "Room stay closed")
         }
 
-        val issuedAt = OffsetDateTime.now()
+        val issuedAt = nowForProperty(stay.property.timezone)
         val expiresAt = request.expiresAt?.let { parseOffset(it) } ?: stay.toAt
             ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "expiresAt required")
         if (!expiresAt.isAfter(issuedAt)) {
@@ -101,7 +102,7 @@ class IssuedCards(
         if (stay.toAt != null) {
             throw ResponseStatusException(HttpStatus.CONFLICT, "Room stay closed")
         }
-        val issuedAt = parseOffset(request.issuedAt) ?: OffsetDateTime.now()
+        val issuedAt = parseOffset(request.issuedAt) ?: nowForProperty(stay.property.timezone)
         val expiresAt = parseOffset(request.expiresAt)
             ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "expiresAt required")
         if (!expiresAt.isAfter(issuedAt)) {
@@ -170,6 +171,15 @@ class IssuedCards(
         }
     }
 
+    private fun nowForProperty(timezone: String?): OffsetDateTime {
+        val zone = try {
+            if (timezone.isNullOrBlank()) ZoneId.of("Asia/Kolkata") else ZoneId.of(timezone)
+        } catch (_: Exception) {
+            ZoneId.of("Asia/Kolkata")
+        }
+        return OffsetDateTime.now(zone)
+    }
+
     private fun requireMember(propertyId: UUID, principal: MyPrincipal?) {
         if (principal == null) {
             throw ResponseStatusException(HttpStatus.UNAUTHORIZED, "Missing principal")
diff --git a/src/main/kotlin/com/android/trisolarisserver/controller/TemporaryRoomCards.kt b/src/main/kotlin/com/android/trisolarisserver/controller/TemporaryRoomCards.kt
index 1cc6247..1af9054 100644
--- a/src/main/kotlin/com/android/trisolarisserver/controller/TemporaryRoomCards.kt
+++ b/src/main/kotlin/com/android/trisolarisserver/controller/TemporaryRoomCards.kt
@@ -23,6 +23,7 @@ import org.springframework.web.bind.annotation.ResponseStatus
 import org.springframework.web.bind.annotation.RestController
 import org.springframework.web.server.ResponseStatusException
 import java.time.OffsetDateTime
+import java.time.ZoneId
 import java.util.UUID
 
 @RestController
@@ -49,7 +50,7 @@ class TemporaryRoomCards(
         val room = roomRepo.findByIdAndPropertyId(roomId, propertyId)
             ?: throw ResponseStatusException(HttpStatus.NOT_FOUND, "Room not found")
 
-        val issuedAt = OffsetDateTime.now()
+        val issuedAt = nowForProperty(room.property.timezone)
         val expiresAt = issuedAt.plusMinutes(temporaryCardDurationMinutes)
         val cardIndex = nextCardIndex(propertyId)
         val payload = buildSector0Payload(room.roomNumber, cardIndex, issuedAt, expiresAt)
@@ -81,7 +82,7 @@ class TemporaryRoomCards(
         val room = roomRepo.findByIdAndPropertyId(roomId, propertyId)
             ?: throw ResponseStatusException(HttpStatus.NOT_FOUND, "Room not found")
 
-        val issuedAt = parseOffset(request.issuedAt) ?: OffsetDateTime.now()
+        val issuedAt = parseOffset(request.issuedAt) ?: nowForProperty(room.property.timezone)
         val expiresAt = issuedAt.plusMinutes(temporaryCardDurationMinutes)
         val now = OffsetDateTime.now()
         if (issuedCardRepo.existsActiveForRoom(propertyId, room.id!!, now)) {
@@ -110,6 +111,15 @@ class TemporaryRoomCards(
         }
     }
 
+    private fun nowForProperty(timezone: String?): OffsetDateTime {
+        val zone = try {
+            if (timezone.isNullOrBlank()) ZoneId.of("Asia/Kolkata") else ZoneId.of(timezone)
+        } catch (_: Exception) {
+            ZoneId.of("Asia/Kolkata")
+        }
+        return OffsetDateTime.now(zone)
+    }
+
     private fun requireIssueActor(propertyId: UUID, principal: MyPrincipal?): com.android.trisolarisserver.models.property.AppUser {
         if (principal == null) {
             throw ResponseStatusException(HttpStatus.UNAUTHORIZED, "Missing principal")