diff --git a/src/components/ContainerComponents/IndicatorsContainer/IndicatorContainerSwitcher.tsx b/src/components/ContainerComponents/IndicatorsContainer/IndicatorContainerSwitcher.tsx
index 1c742ebe59155530163b1fff4cebe848432e1262..835686a75b160d8ac678411a5d47cd8751cf1a3a 100644
--- a/src/components/ContainerComponents/IndicatorsContainer/IndicatorContainerSwitcher.tsx
+++ b/src/components/ContainerComponents/IndicatorsContainer/IndicatorContainerSwitcher.tsx
@@ -5,7 +5,7 @@ import {
   IPerformanceIndicator,
   ITimePeriod,
 } from 'services/dataConsumptionContracts'
-import { convertDateByTimeStep } from 'utils/utils'
+import { convertDateByTimeStep } from 'utils/date'
 import FluidConfigService from 'services/fluidConfigService'
 import FluidPerformanceIndicator from 'components/ContentComponents/PerformanceIndicator/FluidPerformanceIndicator'
 import KonnectorViewer from 'components/ContentComponents/KonnectorViewer/KonnectorViewer'
diff --git a/src/components/ContainerComponents/IndicatorsContainer/MultiFluidIndicatorsContainer.tsx b/src/components/ContainerComponents/IndicatorsContainer/MultiFluidIndicatorsContainer.tsx
index eec3a6f671745dd9364b65dad8c8fa0f4dbdac42..b8652701919cc875a397a7451c237855109d015b 100644
--- a/src/components/ContainerComponents/IndicatorsContainer/MultiFluidIndicatorsContainer.tsx
+++ b/src/components/ContainerComponents/IndicatorsContainer/MultiFluidIndicatorsContainer.tsx
@@ -12,7 +12,7 @@ import ConsumptionPeriodSelector from 'services/consumptionPeriodSelectorService
 import ConsumptionDataManager from 'services/consumptionDataManagerService'
 import PerformanceIndicatorAggregateCalculator from 'services/performanceIndicatorAggregateCalculatorService'
 import { translate } from 'cozy-ui/react/I18n'
-import { convertDateByTimeStep } from 'utils/utils'
+import { convertDateByTimeStep } from 'utils/date'
 
 interface MultiFluidIndicatorsContainerProps {
   timeStep: TimeStep
diff --git a/src/components/ContainerComponents/IndicatorsContainer/SingleFluidIndicatorsContainer.tsx b/src/components/ContainerComponents/IndicatorsContainer/SingleFluidIndicatorsContainer.tsx
index 3147c6643490d5ccf39e33617130d908a4d10193..d797ff132899a3d54bce813c850995ff28277fa1 100644
--- a/src/components/ContainerComponents/IndicatorsContainer/SingleFluidIndicatorsContainer.tsx
+++ b/src/components/ContainerComponents/IndicatorsContainer/SingleFluidIndicatorsContainer.tsx
@@ -12,7 +12,7 @@ import ConsumptionPeriodSelector from 'services/consumptionPeriodSelectorService
 import ConsumptionDataManager from 'services/consumptionDataManagerService'
 import PerformanceIndicatorAggregateCalculator from 'services/performanceIndicatorAggregateCalculatorService'
 import { translate } from 'cozy-ui/react/I18n'
-import { convertDateByTimeStep } from 'utils/utils'
+import { convertDateByTimeStep } from 'utils/date'
 import RedirectionMiniCard from 'components/ContentComponents/Card/RedirectionMiniCard'
 
 interface SingleFluidIndicatorsContainerProps {
diff --git a/src/components/ContainerComponents/ViewContainer/OngoingChallengeDetailsViewContainer.tsx b/src/components/ContainerComponents/ViewContainer/OngoingChallengeDetailsViewContainer.tsx
index ff39bebd96360d30d8eccd0fceb6e05d2a4f15b3..32aca37a92b1cbd124be6f490ea5f103540f8ceb 100644
--- a/src/components/ContainerComponents/ViewContainer/OngoingChallengeDetailsViewContainer.tsx
+++ b/src/components/ContainerComponents/ViewContainer/OngoingChallengeDetailsViewContainer.tsx
@@ -17,7 +17,7 @@ import EcogestureCard from 'components/ContentComponents/EcogestureCard/Ecogestu
 import ChallengeManager from 'services/challengeDataManagerService'
 import { Client, withClient } from 'cozy-client'
 import StyledStopButton from 'components/CommonKit/Button/StyledStopButton'
-import { formatCompareChallengeDate } from 'utils/utils'
+import { formatCompareChallengeDate } from 'utils/date'
 import OngoingChallengePile from 'components/ContentComponents/Challenge/OngoingChallengePile'
 import OngoingChallengeViewingDate from 'components/ContentComponents/Challenge/OngoingChallengeViewingDate'
 import FollowChallengeTimeline from 'components/ContentComponents/Challenge/FollowChallengeTimeline'
diff --git a/src/services/consumptionDataFormatterService.ts b/src/services/consumptionDataFormatterService.ts
index de3c0f75e6c9088c206eb5a156ce5242caf0b905..cba6bdb209af663b38134d0590e3ba9aa3a73407 100644
--- a/src/services/consumptionDataFormatterService.ts
+++ b/src/services/consumptionDataFormatterService.ts
@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/interface-name-prefix */
 import { TimeStep, ITimePeriod, IDataload } from './dataConsumptionContracts'
-import { compareDates } from 'utils/utils'
+import { compareDates } from 'utils/date'
 import { compareStepDate } from './dateChartService'
 //import _ from 'lodash'
 
diff --git a/src/utils/date.ts b/src/utils/date.ts
new file mode 100644
index 0000000000000000000000000000000000000000..aac28530cb9be702d9da5a34cc5cf169057e918e
--- /dev/null
+++ b/src/utils/date.ts
@@ -0,0 +1,53 @@
+import { DateTime } from 'luxon'
+import { ITimePeriod, TimeStep } from '../services/dataConsumptionContracts'
+import { UserChallenge } from 'services/dataChallengeContracts'
+
+export function compareDates(dateA: DateTime, dateB: DateTime) {
+  return dateA < dateB ? -1 : 1
+}
+
+export const formatCompareChallengeDate = (challenge: UserChallenge) => {
+  let durationTimeStep = ''
+  let duration = 0
+  if (challenge && challenge.challengeType) {
+    durationTimeStep = Object.keys(challenge.challengeType.duration)[0]
+    duration = (challenge.challengeType.duration as any)[durationTimeStep]
+  }
+  const delay = { [durationTimeStep]: -duration }
+  const startDate = challenge.startingDate.plus(delay)
+  const endDate = challenge.startingDate.plus({ days: -1 }).endOf('day')
+  return ` (du ${startDate.toFormat('dd/MM')} au ${endDate.toFormat('dd/MM')})`
+}
+
+export const convertDateByTimeStep = (
+  timeperiod: ITimePeriod | null,
+  timeStep: TimeStep,
+  header = false
+): string => {
+  if (!timeperiod) return ''
+  switch (timeStep) {
+    case TimeStep.HALF_AN_HOUR:
+      return ' du ' + timeperiod.startDate.toFormat('dd/MM')
+
+    case TimeStep.HOUR:
+      return ' du ' + timeperiod.startDate.toFormat('dd/MM')
+
+    case TimeStep.DAY:
+      return (
+        (!header ? 'semaine ' : '') +
+        ' du ' +
+        timeperiod.startDate.toFormat('dd/MM') +
+        ' au ' +
+        timeperiod.endDate.toFormat('dd/MM')
+      )
+
+    case TimeStep.MONTH:
+      return ' du ' + timeperiod.startDate.toFormat('MM/y')
+
+    case TimeStep.YEAR:
+      return ' de ' + timeperiod.startDate.toFormat('y')
+
+    default:
+      return ''
+  }
+}
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index cddcb6dcfd63e535ea7182a9abe69e79ca606e66..3ac51c04d7ede5e08ee4dec320757ccccd7d2303 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -11,9 +11,6 @@ import ElecParamIcon from 'assets/icons/visu/elec-param.svg'
 import WaterParamIcon from 'assets/icons/visu/water-param.svg'
 import GasParamIcon from 'assets/icons/visu/gas-param.svg'
 import { FluidType } from '../enum/fluid.enum'
-import { DateTime } from 'luxon'
-import { ITimePeriod, TimeStep } from '../services/dataConsumptionContracts'
-import { UserChallenge } from 'services/dataChallengeContracts'
 
 /**
  * Return an icon corresponding to FuildType enum
@@ -83,53 +80,3 @@ export function formatNumberValues(value: number) {
     return '--,--'
   }
 }
-
-export function compareDates(dateA: DateTime, dateB: DateTime) {
-  return dateA < dateB ? -1 : 1
-}
-
-export const formatCompareChallengeDate = (challenge: UserChallenge) => {
-  let durationTimeStep = ''
-  let duration = 0
-  if (challenge && challenge.challengeType) {
-    durationTimeStep = Object.keys(challenge.challengeType.duration)[0]
-    duration = (challenge.challengeType.duration as any)[durationTimeStep]
-  }
-  const delay = { [durationTimeStep]: -duration }
-  const startDate = challenge.startingDate.plus(delay)
-  const endDate = challenge.startingDate.plus({ days: -1 }).endOf('day')
-  return ` (du ${startDate.toFormat('dd/MM')} au ${endDate.toFormat('dd/MM')})`
-}
-
-export const convertDateByTimeStep = (
-  timeperiod: ITimePeriod | null,
-  timeStep: TimeStep,
-  header = false
-): string => {
-  if (!timeperiod) return ''
-  switch (timeStep) {
-    case TimeStep.HALF_AN_HOUR:
-      return ' du ' + timeperiod.startDate.toFormat('dd/MM')
-
-    case TimeStep.HOUR:
-      return ' du ' + timeperiod.startDate.toFormat('dd/MM')
-
-    case TimeStep.DAY:
-      return (
-        (!header ? 'semaine ' : '') +
-        ' du ' +
-        timeperiod.startDate.toFormat('dd/MM') +
-        ' au ' +
-        timeperiod.endDate.toFormat('dd/MM')
-      )
-
-    case TimeStep.MONTH:
-      return ' du ' + timeperiod.startDate.toFormat('MM/y')
-
-    case TimeStep.YEAR:
-      return ' de ' + timeperiod.startDate.toFormat('y')
-
-    default:
-      return ''
-  }
-}