diff --git a/frontend/src/components/Contributions/ContributionForm.vue b/frontend/src/components/Contributions/ContributionForm.vue
index d879b7676..19540c514 100644
--- a/frontend/src/components/Contributions/ContributionForm.vue
+++ b/frontend/src/components/Contributions/ContributionForm.vue
@@ -45,7 +45,7 @@
           class="mt-3"
           name="amount"
           :label="$t('form.amount')"
-          placeholder="20"
+          :placeholder="GDD_PER_HOUR"
           readonly
           type="text"
           trim
@@ -86,6 +86,7 @@ import ValidatedInput from '@/components/Inputs/ValidatedInput'
 import LabeledInput from '@/components/Inputs/LabeledInput'
 import { memo as memoSchema } from '@/validationSchemas'
 import { object, date as dateSchema, number } from 'yup'
+import { GDD_PER_HOUR } from '../../constants'
 
 const props = defineProps({
   modelValue: { type: Object, required: true },
@@ -123,7 +124,7 @@ const validationSchema = computed(() => {
   const maxAmounts = Number(
     isThisMonth.value ? parseFloat(props.maxGddThisMonth) : parseFloat(props.maxGddLastMonth),
   )
-  const maxHours = parseFloat(Number(maxAmounts / 20).toFixed(2))
+  const maxHours = parseFloat(Number(maxAmounts / GDD_PER_HOUR).toFixed(2))
 
   return object({
     // The date field is required and needs to be a valid date
@@ -143,7 +144,7 @@ const validationSchema = computed(() => {
         if (value === undefined || value === null) return true
         return /^\d+(\.\d{0,2})?$/.test(value.toString())
       }),
-    amount: number().max(maxAmounts),
+    amount: number().min(0.01).max(maxAmounts),
   })
 })
 
@@ -168,7 +169,8 @@ const updateField = (newValue, name) => {
   if (typeof name === 'string' && name.length) {
     form[name] = newValue
     if (name === 'hours') {
-      form.amount = form.hours ? (form.hours * 20).toFixed(2).toString() : '20'
+      const amount = form.hours ? (form.hours * GDD_PER_HOUR).toFixed(2) : GDD_PER_HOUR
+      form.amount = amount.toString()
     }
   }
   emit('update:modelValue', form)
diff --git a/frontend/src/components/Contributions/ContributionListItem.spec.js b/frontend/src/components/Contributions/ContributionListItem.spec.js
index 6140a9147..5abb1f8b6 100644
--- a/frontend/src/components/Contributions/ContributionListItem.spec.js
+++ b/frontend/src/components/Contributions/ContributionListItem.spec.js
@@ -99,12 +99,6 @@ describe('ContributionListItem', () => {
       })
     })
 
-    describe('date', () => {
-      it('is equal to createdAt', () => {
-        expect(wrapper.vm.date).toBe(wrapper.vm.createdAt)
-      })
-    })
-
     describe('delete contribution', () => {
       describe('edit contribution', () => {
         beforeEach(() => {
diff --git a/frontend/src/components/Contributions/ContributionListItem.vue b/frontend/src/components/Contributions/ContributionListItem.vue
index 6c80a9439..a08af2e4c 100644
--- a/frontend/src/components/Contributions/ContributionListItem.vue
+++ b/frontend/src/components/Contributions/ContributionListItem.vue
@@ -125,8 +125,9 @@ import ContributionMessagesList from '@/components/ContributionMessages/Contribu
 import { listContributionMessages } from '@/graphql/queries'
 import { useAppToast } from '@/composables/useToast'
 import { useI18n } from 'vue-i18n'
-import { useLazyQuery, useQuery } from '@vue/apollo-composable'
+import { useLazyQuery } from '@vue/apollo-composable'
 import AppAvatar from '@/components/AppAvatar.vue'
+import { GDD_PER_HOUR } from '../../constants'
 
 const props = defineProps({
   id: {
@@ -201,10 +202,9 @@ const props = defineProps({
   },
 })
 
-const { toastError, toastSuccess } = useAppToast()
+const { toastError } = useAppToast()
 const { t } = useI18n()
 
-const inProcess = ref(true)
 const messagesGet = ref([])
 const visible = ref(false)
 
@@ -224,8 +224,6 @@ const icon = computed(() => {
   return 'bell-fill'
 })
 
-const date = computed(() => props.createdAt)
-
 const collapseId = computed(() => 'collapse' + String(props.id))
 
 const username = computed(() => ({
@@ -233,7 +231,7 @@ const username = computed(() => ({
   initials: `${props.firstName[0]}${props.lastName[0]}`,
 }))
 
-const hours = computed(() => parseFloat((props.amount / 20).toFixed(2)))
+const hours = computed(() => parseFloat((props.amount / GDD_PER_HOUR).toFixed(2)))
 
 watch(
   () => visible.value,
diff --git a/frontend/src/components/Contributions/OpenCreationsAmount.vue b/frontend/src/components/Contributions/OpenCreationsAmount.vue
index fe49a01a7..2b15bdc52 100644
--- a/frontend/src/components/Contributions/OpenCreationsAmount.vue
+++ b/frontend/src/components/Contributions/OpenCreationsAmount.vue
@@ -32,32 +32,29 @@
     </div>
   </div>
 </template>
-<script>
+
+<script setup>
+import { computed } from 'vue'
+import { GDD_PER_HOUR } from '../../constants'
+
+const props = defineProps({
+  minimalDate: { type: Date, required: true },
+  maxGddLastMonth: { type: Number, required: true },
+  maxGddThisMonth: { type: Number, required: true },
+})
+
 function afterComma(input) {
   return parseFloat(input.toFixed(2)).toString()
 }
-export default {
-  name: 'OpenCreationsAmount',
-  props: {
-    minimalDate: { type: Date, required: true },
-    maxGddLastMonth: { type: Number, required: true },
-    maxGddThisMonth: { type: Number, required: true },
-  },
-  computed: {
-    hoursSubmittedThisMonth() {
-      return afterComma((1000 - this.maxGddThisMonth) / 20)
-    },
-    hoursSubmittedLastMonth() {
-      return afterComma((1000 - this.maxGddLastMonth) / 20)
-    },
-    hoursAvailableThisMonth() {
-      return afterComma(this.maxGddThisMonth / 20)
-    },
-    hoursAvailableLastMonth() {
-      return afterComma(this.maxGddLastMonth / 20)
-    },
-  },
-}
+
+const hoursSubmittedThisMonth = computed(() =>
+  afterComma((1000 - props.maxGddThisMonth) / GDD_PER_HOUR),
+)
+const hoursSubmittedLastMonth = computed(() =>
+  afterComma((1000 - props.maxGddLastMonth) / GDD_PER_HOUR),
+)
+const hoursAvailableThisMonth = computed(() => afterComma(props.maxGddThisMonth / GDD_PER_HOUR))
+const hoursAvailableLastMonth = computed(() => afterComma(props.maxGddLastMonth / GDD_PER_HOUR))
 </script>
 
 <style lang="scss" scoped>
diff --git a/frontend/src/constants.js b/frontend/src/constants.js
new file mode 100644
index 000000000..2a40a57c8
--- /dev/null
+++ b/frontend/src/constants.js
@@ -0,0 +1 @@
+export const GDD_PER_HOUR = 20
diff --git a/frontend/src/pages/Community.vue b/frontend/src/pages/Community.vue
index c735f35f1..6d7ab8ba0 100644
--- a/frontend/src/pages/Community.vue
+++ b/frontend/src/pages/Community.vue
@@ -68,6 +68,7 @@ import { createContribution, updateContribution, deleteContribution } from '@/gr
 import { listContributions, listAllContributions, openCreations } from '@/graphql/queries'
 import { useAppToast } from '@/composables/useToast'
 import { useI18n } from 'vue-i18n'
+import { GDD_PER_HOUR } from '../constants'
 
 const COMMUNITY_TABS = ['contribute', 'contributions', 'community']
 
@@ -93,7 +94,7 @@ const form = ref({
   date: undefined,
   memo: '',
   hours: '',
-  amount: 20,
+  amount: GDD_PER_HOUR,
 })
 const originalContributionDate = ref('')
 const updateAmount = ref('')