diff --git a/pyproject.toml b/pyproject.toml
index 98bb405..5d555aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pricehist"
-version = "1.4.11"
+version = "1.4.12"
 description = "Fetch and format historical price data"
 authors = ["Chris Berkhout <chris@chrisberkhout.com>"]
 license = "MIT"
diff --git a/src/pricehist/__init__.py b/src/pricehist/__init__.py
index e42b3cf..2736991 100644
--- a/src/pricehist/__init__.py
+++ b/src/pricehist/__init__.py
@@ -1 +1 @@
-__version__ = "1.4.11"
+__version__ = "1.4.12"
diff --git a/src/pricehist/sources/yahoo.py b/src/pricehist/sources/yahoo.py
index 169bf71..25d92fe 100644
--- a/src/pricehist/sources/yahoo.py
+++ b/src/pricehist/sources/yahoo.py
@@ -82,18 +82,14 @@ class Yahoo(BaseSource):
         prices = [
             Price(date, amount)
             for i in range(len(timestamps))
-            if (date := self._date_from_ts(timestamps[i], offset)) <= series.end
+            if (date := self._ts_to_date(timestamps[i] + offset)) <= series.end
             if (amount := self._amount(amounts, series.type, i)) is not None
         ]
 
         return dataclasses.replace(series, quote=quote, prices=prices)
 
-    def _date_from_ts(self, ts, offset) -> str:
-        return (
-            datetime.fromtimestamp(ts - offset)
-            .replace(tzinfo=timezone.utc)
-            .strftime("%Y-%m-%d")
-        )
+    def _ts_to_date(self, ts) -> str:
+        return datetime.fromtimestamp(ts, tz=timezone.utc).date().isoformat()
 
     def _amount(self, amounts, type, i):
         if type == "mid" and amounts["high"] != "null" and amounts["low"] != "null":
diff --git a/tests/live.sh b/tests/live.sh
index cb2dbeb..157cdad 100755
--- a/tests/live.sh
+++ b/tests/live.sh
@@ -75,10 +75,10 @@ name="Alpha Vantage physical currency"
 cmd="pricehist fetch alphavantage AUD/EUR -s 2021-01-11 -e 2021-01-14"
 read -r -d '' expected <<END
 date,base,quote,amount,source,type
-2021-01-11,AUD,EUR,0.63318,alphavantage,close
-2021-01-12,AUD,EUR,0.63664,alphavantage,close
-2021-01-13,AUD,EUR,0.63585,alphavantage,close
-2021-01-14,AUD,EUR,0.63960,alphavantage,close
+2021-01-11,AUD,EUR,0.63374,alphavantage,close
+2021-01-12,AUD,EUR,0.63684,alphavantage,close
+2021-01-13,AUD,EUR,0.63686,alphavantage,close
+2021-01-14,AUD,EUR,0.63984,alphavantage,close
 END
 run_test "$name" "$cmd" "$expected"
 
diff --git a/tests/pricehist/sources/test_yahoo/inrx-with-null.json b/tests/pricehist/sources/test_yahoo/inrx-with-null.json
new file mode 100644
index 0000000..5ae762e
--- /dev/null
+++ b/tests/pricehist/sources/test_yahoo/inrx-with-null.json
@@ -0,0 +1,119 @@
+{
+  "chart": {
+    "result": [
+      {
+        "meta": {
+          "currency": "INR",
+          "symbol": "INR=X",
+          "exchangeName": "CCY",
+          "fullExchangeName": "CCY",
+          "instrumentType": "CURRENCY",
+          "firstTradeDate": 1070236800,
+          "regularMarketTime": 1726284616,
+          "hasPrePostMarketData": false,
+          "gmtoffset": 3600,
+          "timezone": "BST",
+          "exchangeTimezoneName": "Europe/London",
+          "regularMarketPrice": 83.89,
+          "fiftyTwoWeekHigh": 83.89,
+          "fiftyTwoWeekLow": 83.89,
+          "regularMarketDayHigh": 83.89,
+          "regularMarketDayLow": 83.89,
+          "regularMarketVolume": 0,
+          "longName": "USD/INR",
+          "shortName": "USD/INR",
+          "chartPreviousClose": 64.6117,
+          "priceHint": 4,
+          "currentTradingPeriod": {
+            "pre": {
+              "timezone": "BST",
+              "start": 1726182000,
+              "end": 1726182000,
+              "gmtoffset": 3600
+            },
+            "regular": {
+              "timezone": "BST",
+              "start": 1726182000,
+              "end": 1726268340,
+              "gmtoffset": 3600
+            },
+            "post": {
+              "timezone": "BST",
+              "start": 1726268340,
+              "end": 1726268340,
+              "gmtoffset": 3600
+            }
+          },
+          "dataGranularity": "1d",
+          "range": "",
+          "validRanges": [
+            "1d",
+            "5d",
+            "1mo",
+            "3mo",
+            "6mo",
+            "1y",
+            "2y",
+            "5y",
+            "10y",
+            "ytd",
+            "max"
+          ]
+        },
+        "timestamp": [
+          1499641200,
+          1499727600,
+          1499814000,
+          1499900400
+        ],
+        "indicators": {
+          "quote": [
+            {
+              "open": [
+                64.6155014038086,
+                null,
+                64.55549621582031,
+                64.46800231933594
+              ],
+              "volume": [
+                0,
+                null,
+                0,
+                0
+              ],
+              "low": [
+                64.41000366210938,
+                null,
+                64.3499984741211,
+                64.33999633789062
+              ],
+              "close": [
+                64.61170196533203,
+                null,
+                64.52559661865234,
+                64.36499786376953
+              ],
+              "high": [
+                64.6155014038086,
+                null,
+                64.56999969482422,
+                64.48419952392578
+              ]
+            }
+          ],
+          "adjclose": [
+            {
+              "adjclose": [
+                64.61170196533203,
+                null,
+                64.52559661865234,
+                64.36499786376953
+              ]
+            }
+          ]
+        }
+      }
+    ],
+    "error": null
+  }
+}