diff --git a/pyometiff/omereader.py b/pyometiff/omereader.py
index 954767f..58ff0a0 100755
--- a/pyometiff/omereader.py
+++ b/pyometiff/omereader.py
@@ -35,7 +35,7 @@ def __init__(self,
         self.fpath = Path(fpath)
         self.imageseries = imageseries
 
-    def read(self) -> (np.ndarray, dict, str):
+    def read(self) -> tuple[np.ndarray, dict, str]:
         self.array, self.omexml_string = self._open_tiff(self.fpath)
         self.metadata = self.parse_metadata(self.omexml_string)
         return self.array, self.metadata, self.omexml_string
@@ -72,6 +72,10 @@ def parse_metadata(self, omexml_string):
         metadata["PhysicalSizeY"] = self.ox.image(self.imageseries).Pixels.PhysicalSizeY
         metadata["PhysicalSizeZ"] = self.ox.image(self.imageseries).Pixels.PhysicalSizeZ
 
+        # time increment
+        metadata["TimeIncrement"] = self.ox.image(self.imageseries).Pixels.TimeIncrement
+        metadata["TimeIncrementUnit"] = self.ox.image(self.imageseries).Pixels.TimeIncrementUnit
+
         # physical size unit
         metadata["PhysicalSizeXUnit"] = self.ox.image(
             self.imageseries
diff --git a/pyometiff/omewriter.py b/pyometiff/omewriter.py
index 7e6f8dd..5ad6e24 100755
--- a/pyometiff/omewriter.py
+++ b/pyometiff/omewriter.py
@@ -173,6 +173,15 @@ def _dim_or_1(dim):
         pixels.set_SizeZ(_dim_or_1("Z"))
         pixels.set_SizeY(_dim_or_1("Y"))
         pixels.set_SizeX(_dim_or_1("X"))
+        
+        # time increment
+        time_increment = pop_expected_keys.get("TimeIncrement", None)
+        time_increment_unit = pop_expected_keys.get("TimeIncrementUnit", None)
+        
+        if time_increment is not None:
+            pixels.set_TimeIncrement(time_increment)
+        if time_increment_unit is not None:
+            pixels.set_TimeIncrementUnit(time_increment_unit)
 
         # this is reversed of what dimensionality of the ometiff file is saved as
         pixels.set_DimensionOrder(self._dimension_order[::-1])
diff --git a/pyometiff/omexml.py b/pyometiff/omexml.py
index c3e86cb..acdcb5f 100755
--- a/pyometiff/omexml.py
+++ b/pyometiff/omexml.py
@@ -988,6 +988,24 @@ def set_SizeC(self, value: int) -> None:
 
         SizeC = property(get_SizeC, set_SizeC)
 
+        def get_TimeIncrement(self) -> float:
+            """The time increment between T planes"""
+            return get_float_attr(self.node, "TimeIncrement")
+
+        def set_TimeIncrement(self, value: float) -> None:
+            self.node.set("TimeIncrement", str(value))
+
+        TimeIncrement = property(get_TimeIncrement, set_TimeIncrement)
+
+        def get_TimeIncrementUnit(self) -> str:
+            """The unit of the time increment"""
+            return self.node.get("TimeIncrementUnit")
+        
+        def set_TimeIncrementUnit(self, value: str) -> None:
+            self.node.set("TimeIncrementUnit", value)
+
+        TimeIncrementUnit = property(get_TimeIncrementUnit, set_TimeIncrementUnit)
+
         def get_channel_count(self) -> int:
             """The number of channels in the image