diff --git a/optuna_dashboard/ts/components/TrialList.tsx b/optuna_dashboard/ts/components/TrialList.tsx
index 63abade1..839129ed 100644
--- a/optuna_dashboard/ts/components/TrialList.tsx
+++ b/optuna_dashboard/ts/components/TrialList.tsx
@@ -5,9 +5,12 @@ import StopCircleIcon from "@mui/icons-material/StopCircle"
 import {
   Box,
   Button,
+  FormControl,
   IconButton,
+  InputLabel,
   Menu,
   MenuItem,
+  Select,
   Typography,
   useTheme,
 } from "@mui/material"
@@ -24,11 +27,11 @@ import React, { FC, ReactNode, useMemo } from "react"
 import ListItemIcon from "@mui/material/ListItemIcon"
 import { useVirtualizer } from "@tanstack/react-virtual"
 import { useNavigate } from "react-router-dom"
-import { useRecoilValue } from "recoil"
+import { useRecoilState, useRecoilValue } from "recoil"
 import { FormWidgets, StudyDetail, Trial } from "ts/types/optuna"
 import { actionCreator } from "../action"
 import { useConstants } from "../constantsProvider"
-import { artifactIsAvailable } from "../state"
+import { artifactIsAvailable, trialListDurationTimeUnitState } from "../state"
 import { useQuery } from "../urlQuery"
 import { TrialArtifactCards } from "./Artifact/TrialArtifactCards"
 import { TrialNote } from "./Note"
@@ -134,11 +137,34 @@ export const TrialListDetail: FC<{
   const artifactEnabled = useRecoilValue<boolean>(artifactIsAvailable)
   const startMs = trial.datetime_start?.getTime()
   const completeMs = trial.datetime_complete?.getTime()
+  const [durationTimeUnit, setDurationTimeUnit] = useRecoilState(
+    trialListDurationTimeUnitState
+  )
+  const duration = useMemo(
+    () =>
+      startMs !== undefined && completeMs !== undefined
+        ? (completeMs - startMs) /
+          10 **
+            (durationTimeUnit === "ms"
+              ? 0
+              : durationTimeUnit === "s"
+                ? 3
+                : durationTimeUnit === "min"
+                  ? 6
+                  : 9)
+        : null,
+    [startMs, completeMs, durationTimeUnit]
+  )
 
   const params = trial.state === "Waiting" ? trial.fixed_params : trial.params
-  const info: [string, string | null | ReactNode][] = [
-    ["Value", trial.values?.map((v) => v.toString()).join(", ") || "None"],
+  const info: [string, string | ReactNode, string | null | ReactNode][] = [
     [
+      "value",
+      "Value",
+      trial.values?.map((v) => v.toString()).join(", ") || "None",
+    ],
+    [
+      "intermediate_values",
       "Intermediate Values",
       <Box component="div">
         {trial.intermediate_values.map((v) => (
@@ -149,6 +175,7 @@ export const TrialListDetail: FC<{
       </Box>,
     ],
     [
+      "parameter",
       "Parameter",
       <Box component="div">
         {params.map((p) => (
@@ -159,20 +186,52 @@ export const TrialListDetail: FC<{
       </Box>,
     ],
     [
+      "started_at",
       "Started At",
       trial?.datetime_start ? trial?.datetime_start.toString() : null,
     ],
     [
+      "completed_at",
       "Completed At",
       trial?.datetime_complete ? trial?.datetime_complete.toString() : null,
     ],
     [
-      "Duration (ms)",
-      startMs !== undefined && completeMs !== undefined
-        ? (completeMs - startMs).toString()
-        : null,
+      "duration",
+      <Box
+        component="div"
+        sx={{ display: "flex", alignItems: "center", minWidth: "200px" }}
+      >
+        <Typography
+          sx={{ p: theme.spacing(1) }}
+          color="text.secondary"
+          fontWeight={theme.typography.fontWeightLight}
+          fontSize={theme.typography.fontSize}
+        >
+          Duration
+        </Typography>
+        <FormControl sx={{ width: 80 }} size="small">
+          <InputLabel id="trial-list-duration-select-label">
+            Time Unit
+          </InputLabel>
+          <Select
+            labelId="trial-list-duration-select-label"
+            label="Time Unit"
+            value={durationTimeUnit}
+            onChange={(e) =>
+              setDurationTimeUnit(e.target.value as "ms" | "s" | "min" | "h")
+            }
+          >
+            <MenuItem value="ms">ms</MenuItem>
+            <MenuItem value="s">s</MenuItem>
+            <MenuItem value="min">min</MenuItem>
+            <MenuItem value="h">h</MenuItem>
+          </Select>
+        </FormControl>
+      </Box>,
+      duration,
     ],
     [
+      "user_attrs",
       "User Attributes",
       <Box component="div">
         {trial.user_attrs.map((t) => (
@@ -185,6 +244,7 @@ export const TrialListDetail: FC<{
   ]
   const renderInfo = (
     key: string,
+    attribute: string | ReactNode,
     value: string | null | ReactNode
   ): ReactNode => (
     <Box
@@ -196,15 +256,19 @@ export const TrialListDetail: FC<{
         marginBottom: theme.spacing(0.5),
       }}
     >
-      <Typography
-        sx={{ p: theme.spacing(1) }}
-        color="text.secondary"
-        minWidth={"200px"}
-        fontWeight={theme.typography.fontWeightLight}
-        fontSize={theme.typography.fontSize}
-      >
-        {key}
-      </Typography>
+      {typeof attribute === "string" ? (
+        <Typography
+          sx={{ p: theme.spacing(1) }}
+          color="text.secondary"
+          minWidth={"200px"}
+          fontWeight={theme.typography.fontWeightLight}
+          fontSize={theme.typography.fontSize}
+        >
+          {attribute}
+        </Typography>
+      ) : (
+        attribute
+      )}
       <Box
         component="div"
         sx={{
@@ -301,8 +365,8 @@ export const TrialListDetail: FC<{
           flexDirection: "column",
         }}
       >
-        {info.map(([key, value]) =>
-          value !== null ? renderInfo(key, value) : null
+        {info.map(([key, attribute, value]) =>
+          value !== null ? renderInfo(key, attribute, value) : null
         )}
       </Box>
       {artifactEnabled && <TrialArtifactCards trial={trial} />}
diff --git a/optuna_dashboard/ts/state.ts b/optuna_dashboard/ts/state.ts
index aa6be637..1dc5ef33 100644
--- a/optuna_dashboard/ts/state.ts
+++ b/optuna_dashboard/ts/state.ts
@@ -66,6 +66,11 @@ export const studyDetailLoadingState = atom<Record<number, boolean>>({
   default: {},
 })
 
+export const trialListDurationTimeUnitState = atom<"ms" | "s" | "min" | "h">({
+  key: "trialListDurationTimeUnit",
+  default: "ms",
+})
+
 export const usePlotBackendRendering = () => {
   return useLocalStorage<boolean>("plotBackendRendering", false)
 }