diff --git a/dev/generator/src/issues.ts b/dev/generator/src/issues.ts
index 686772ebb5..d2c294b703 100644
--- a/dev/generator/src/issues.ts
+++ b/dev/generator/src/issues.ts
@@ -34,6 +34,7 @@ const object: AttachedData<Issue> = {
   subIssues: 0,
   parents: [],
   reportedTime: 0,
+  remainingTime: 0,
   estimation: 0,
   reports: 0,
   childInfo: []
@@ -96,6 +97,7 @@ async function genIssue (client: TxOperations, statuses: Ref<IssueStatus>[]): Pr
     dueDate: object.dueDate,
     parents: [],
     reportedTime: 0,
+    remainingTime: 0,
     estimation: object.estimation,
     reports: 0,
     relations: [],
diff --git a/models/tracker/src/index.ts b/models/tracker/src/index.ts
index 08bcb6fcf2..f4d732656e 100644
--- a/models/tracker/src/index.ts
+++ b/models/tracker/src/index.ts
@@ -39,8 +39,10 @@ import {
   TProjectIssueTargetOptions,
   TRelatedIssueTarget,
   TTimeSpendReport,
+  TTypeEstimation,
   TTypeIssuePriority,
   TTypeMilestoneStatus,
+  TTypeRemainingTime,
   TTypeReportedTime
 } from './types'
 import { defineViewlets } from './viewlets'
@@ -430,7 +432,9 @@ export function createModel (builder: Builder): void {
     TTimeSpendReport,
     TTypeReportedTime,
     TProjectIssueTargetOptions,
-    TRelatedIssueTarget
+    TRelatedIssueTarget,
+    TTypeEstimation,
+    TTypeRemainingTime
   )
 
   defineViewlets(builder)
diff --git a/models/tracker/src/migration.ts b/models/tracker/src/migration.ts
index 2a62558162..06730b11b1 100644
--- a/models/tracker/src/migration.ts
+++ b/models/tracker/src/migration.ts
@@ -171,6 +171,22 @@ async function fixEstimation (client: MigrationClient): Promise<void> {
   }
 }
 
+async function fixRemainingTime (client: MigrationClient): Promise<void> {
+  while (true) {
+    const issues = await client.find<Issue>(DOMAIN_TASK, { remainingTime: { $exists: false } }, { limit: 1000 })
+    for (const issue of issues) {
+      await client.update(
+        DOMAIN_TASK,
+        { _id: issue._id },
+        { remainingTime: Math.max(0, issue.estimation - issue.reportedTime) }
+      )
+    }
+    if (issues.length === 0) {
+      break
+    }
+  }
+}
+
 async function moveIssues (client: MigrationClient): Promise<void> {
   const docs = await client.find(DOMAIN_TRACKER, { _class: tracker.class.Issue })
   if (docs.length > 0) {
@@ -218,6 +234,10 @@ export const trackerOperation: MigrateOperation = {
       {
         state: 'estimationDayToHour',
         func: fixEstimation
+      },
+      {
+        state: 'fixRemainingTime',
+        func: fixRemainingTime
       }
     ])
   },
diff --git a/models/tracker/src/plugin.ts b/models/tracker/src/plugin.ts
index 94f811b58e..0ebe5644d6 100644
--- a/models/tracker/src/plugin.ts
+++ b/models/tracker/src/plugin.ts
@@ -43,7 +43,6 @@ export default mergeIds(trackerId, tracker, {
     Unarchive: '' as IntlString,
     UnarchiveConfirm: '' as IntlString,
     AllProjects: '' as IntlString,
-    RemainingTime: '' as IntlString,
     MapRelatedIssues: '' as IntlString
   },
   activity: {
diff --git a/models/tracker/src/presenters.ts b/models/tracker/src/presenters.ts
index 519c1ba085..4317a7b584 100644
--- a/models/tracker/src/presenters.ts
+++ b/models/tracker/src/presenters.ts
@@ -138,7 +138,21 @@ export function definePresenters (builder: Builder): void {
   classPresenter(
     builder,
     tracker.class.TypeReportedTime,
-    view.component.NumberPresenter,
+    tracker.component.TimePresenter,
     tracker.component.ReportedTimeEditor
   )
+
+  classPresenter(
+    builder,
+    tracker.class.TypeEstimation,
+    tracker.component.TimePresenter,
+    tracker.component.EstimationValueEditor
+  )
+
+  classPresenter(
+    builder,
+    tracker.class.TypeRemainingTime,
+    tracker.component.TimePresenter,
+    tracker.component.EstimationValueEditor
+  )
 }
diff --git a/models/tracker/src/types.ts b/models/tracker/src/types.ts
index 42cb4f6139..d0626fb764 100644
--- a/models/tracker/src/types.ts
+++ b/models/tracker/src/types.ts
@@ -143,17 +143,31 @@ export class TRelatedIssueTarget extends TDoc implements RelatedIssueTarget {
 
   rule!: RelatedClassRule | RelatedSpaceRule
 }
+
 /**
  * @public
  */
-
 export function TypeReportedTime (): Type<number> {
-  return { _class: tracker.class.TypeReportedTime, label: core.string.Number }
+  return { _class: tracker.class.TypeReportedTime, label: tracker.string.ReportedTime }
 }
+
 /**
  * @public
  */
+export function TypeRemainingTime (): Type<number> {
+  return { _class: tracker.class.TypeRemainingTime, label: tracker.string.RemainingTime }
+}
 
+/**
+ * @public
+ */
+export function TypeEstimation (): Type<number> {
+  return { _class: tracker.class.TypeEstimation, label: tracker.string.Estimation }
+}
+
+/**
+ * @public
+ */
 @Model(tracker.class.Issue, task.class.Task)
 @UX(tracker.string.Issue, tracker.icon.Issue, 'TSK', 'title')
 export class TIssue extends TTask implements Issue {
@@ -229,18 +243,15 @@ export class TIssue extends TTask implements Issue {
   @Index(IndexKind.Indexed)
     milestone!: Ref<Milestone> | null
 
-  @Prop(TypeNumber(), tracker.string.Estimation)
+  @Prop(TypeEstimation(), tracker.string.Estimation)
     estimation!: number
 
   @Prop(TypeReportedTime(), tracker.string.ReportedTime)
   @ReadOnly()
     reportedTime!: number
 
-  // A fully virtual property with calculated content.
-  // TODO: Add proper support for this kind of fields
-  @Prop(TypeNumber(), tracker.string.RemainingTime)
+  @Prop(TypeRemainingTime(), tracker.string.RemainingTime)
   @ReadOnly()
-  @Hidden()
     remainingTime!: number
 
   @Prop(Collection(tracker.class.TimeSpendReport), tracker.string.TimeSpendReports)
@@ -283,7 +294,7 @@ export class TIssueTemplate extends TDoc implements IssueTemplate {
   @Prop(TypeRef(tracker.class.Milestone), tracker.string.Milestone)
     milestone!: Ref<Milestone> | null
 
-  @Prop(TypeNumber(), tracker.string.Estimation)
+  @Prop(TypeEstimation(), tracker.string.Estimation)
     estimation!: number
 
   @Prop(ArrOf(TypeRef(tracker.class.IssueTemplate)), tracker.string.IssueTemplate)
@@ -386,3 +397,11 @@ export class TMilestone extends TDoc implements Milestone {
 @UX(core.string.Number)
 @Model(tracker.class.TypeReportedTime, core.class.Type)
 export class TTypeReportedTime extends TType {}
+
+@UX(core.string.Number)
+@Model(tracker.class.TypeEstimation, core.class.Type)
+export class TTypeEstimation extends TType {}
+
+@UX(core.string.Number)
+@Model(tracker.class.TypeRemainingTime, core.class.Type)
+export class TTypeRemainingTime extends TType {}
diff --git a/models/tracker/src/viewlets.ts b/models/tracker/src/viewlets.ts
index add265f0d1..5e0393431f 100644
--- a/models/tracker/src/viewlets.ts
+++ b/models/tracker/src/viewlets.ts
@@ -24,14 +24,28 @@ import tracker from './plugin'
 import tags from '@hcengineering/tags'
 
 export const issuesOptions = (kanban: boolean): ViewOptionsModel => ({
-  groupBy: ['status', 'assignee', 'priority', 'component', 'milestone', 'createdBy', 'modifiedBy'],
+  groupBy: [
+    'status',
+    'assignee',
+    'priority',
+    'component',
+    'milestone',
+    'createdBy',
+    'modifiedBy',
+    'estimation',
+    'remainingTime',
+    'reportedTime'
+  ],
   orderBy: [
     ['status', SortingOrder.Ascending],
     ['priority', SortingOrder.Descending],
     ['modifiedOn', SortingOrder.Descending],
     ['createdOn', SortingOrder.Descending],
     ['dueDate', SortingOrder.Ascending],
-    ['rank', SortingOrder.Ascending]
+    ['rank', SortingOrder.Ascending],
+    ['estimation', SortingOrder.Descending],
+    ['remainingTime', SortingOrder.Descending],
+    ['reportedTime', SortingOrder.Descending]
   ],
   other: [
     {
@@ -202,6 +216,7 @@ export function defineViewlets (builder: Builder): void {
           'component',
           'milestone',
           'estimation',
+          'remainingTime',
           'status',
           'dueDate',
           'attachedTo',
@@ -246,6 +261,7 @@ export function defineViewlets (builder: Builder): void {
           'dueDate',
           'milestone',
           'estimation',
+          'remainingTime',
           'createdBy',
           'modifiedBy'
         ]
@@ -287,6 +303,7 @@ export function defineViewlets (builder: Builder): void {
           'dueDate',
           'milestone',
           'estimation',
+          'remainingTime',
           'createdBy',
           'modifiedBy'
         ]
@@ -328,6 +345,7 @@ export function defineViewlets (builder: Builder): void {
           'dueDate',
           'component',
           'estimation',
+          'remainingTime',
           'createdBy',
           'modifiedBy'
         ]
@@ -355,7 +373,17 @@ export function defineViewlets (builder: Builder): void {
       },
       configOptions: {
         strict: true,
-        hiddenKeys: ['milestone', 'estimation', 'component', 'title', 'description', 'createdBy', 'modifiedBy']
+        hiddenKeys: [
+          'milestone',
+          'estimation',
+          'remainingTime',
+          'reportedTime',
+          'component',
+          'title',
+          'description',
+          'createdBy',
+          'modifiedBy'
+        ]
       },
       config: [
         // { key: '', presenter: tracker.component.PriorityEditor, props: { kind: 'list', size: 'small' } },
diff --git a/plugins/recruit-resources/src/components/CreateVacancy.svelte b/plugins/recruit-resources/src/components/CreateVacancy.svelte
index 12564c658c..c596f2ad2e 100644
--- a/plugins/recruit-resources/src/components/CreateVacancy.svelte
+++ b/plugins/recruit-resources/src/components/CreateVacancy.svelte
@@ -140,6 +140,7 @@
       dueDate: null,
       parents: [],
       reportedTime: 0,
+      remainingTime: 0,
       estimation: template.estimation,
       reports: 0,
       relations: [{ _id: id, _class: recruit.class.Vacancy }],
diff --git a/plugins/tracker-resources/src/components/CreateIssue.svelte b/plugins/tracker-resources/src/components/CreateIssue.svelte
index 161eb52900..d7d16e19c6 100644
--- a/plugins/tracker-resources/src/components/CreateIssue.svelte
+++ b/plugins/tracker-resources/src/components/CreateIssue.svelte
@@ -388,6 +388,7 @@
         ? [{ parentId: parentIssue._id, parentTitle: parentIssue.title }, ...parentIssue.parents]
         : [],
       reportedTime: 0,
+      remainingTime: 0,
       estimation: object.estimation,
       reports: 0,
       relations: relatedTo !== undefined ? [{ _id: relatedTo._id, _class: relatedTo._class }] : [],
diff --git a/plugins/tracker-resources/src/components/SubIssues.svelte b/plugins/tracker-resources/src/components/SubIssues.svelte
index 7afb4805f4..33aca52856 100644
--- a/plugins/tracker-resources/src/components/SubIssues.svelte
+++ b/plugins/tracker-resources/src/components/SubIssues.svelte
@@ -92,6 +92,7 @@
         dueDate: null,
         parents,
         reportedTime: 0,
+        remainingTime: 0,
         estimation: subIssue.estimation,
         reports: 0,
         relations: [],
diff --git a/plugins/tracker-resources/src/components/issues/timereport/EstimationPopup.svelte b/plugins/tracker-resources/src/components/issues/timereport/EstimationPopup.svelte
index 6e4a3dcf9d..0cf4eacf96 100644
--- a/plugins/tracker-resources/src/components/issues/timereport/EstimationPopup.svelte
+++ b/plugins/tracker-resources/src/components/issues/timereport/EstimationPopup.svelte
@@ -25,6 +25,7 @@
   import SubIssuesEstimations from './SubIssuesEstimations.svelte'
   import TimeSpendReportPopup from './TimeSpendReportPopup.svelte'
   import TimeSpendReports from './TimeSpendReports.svelte'
+  import TimePresenter from './TimePresenter.svelte'
 
   export let format: 'text' | 'password' | 'number'
   export let kind: EditStyle = 'search-style'
@@ -104,6 +105,10 @@
       >
         <EstimationStatsPresenter value={object} estimation={_value} />
       </div>
+      <Label label={tracker.string.RemainingTime} />
+      <div class="ml-2 mr-4">
+        <TimePresenter value={object.remainingTime} />
+      </div>
     </div>
   </svelte:fragment>
 
diff --git a/plugins/tracker-resources/src/components/issues/timereport/EstimationValueEditor.svelte b/plugins/tracker-resources/src/components/issues/timereport/EstimationValueEditor.svelte
new file mode 100644
index 0000000000..18c3dbf90b
--- /dev/null
+++ b/plugins/tracker-resources/src/components/issues/timereport/EstimationValueEditor.svelte
@@ -0,0 +1,79 @@
+<!--
+// Copyright © 2020, 2021 Anticrm Platform Contributors.
+// Copyright © 2021 Hardcore Engineering Inc.
+// 
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// 
+// See the License for the specific language governing permissions and
+// limitations under the License.
+-->
+<script lang="ts">
+  import type { IntlString } from '@hcengineering/platform'
+  import type { ButtonSize } from '@hcengineering/ui'
+  import { EditBox, Label, showPopup, eventToHTMLElement, Button } from '@hcengineering/ui'
+  import { EditBoxPopup } from '@hcengineering/view-resources'
+  import TimePresenter from './TimePresenter.svelte'
+
+  // export let label: IntlString
+  export let placeholder: IntlString
+  export let value: number | undefined
+  export let autoFocus: boolean = false
+  // export let maxWidth: string = '10rem'
+  export let onChange: (value: number | undefined) => void
+  export let kind: 'no-border' | 'link' | 'button' = 'no-border'
+  export let readonly = false
+  export let size: ButtonSize = 'small'
+  export let justify: 'left' | 'center' = 'center'
+  export let width: string | undefined = 'fit-content'
+
+  let shown: boolean = false
+
+  function _onchange (ev: Event) {
+    const value = (ev.target as HTMLInputElement).valueAsNumber
+    if (Number.isFinite(value)) {
+      onChange(value)
+    }
+  }
+</script>
+
+{#if kind === 'button' || kind === 'link'}
+  <Button
+    kind={kind === 'button' ? 'regular' : kind}
+    {size}
+    {justify}
+    {width}
+    on:click={(ev) => {
+      if (!shown && !readonly) {
+        showPopup(EditBoxPopup, { value, format: 'number' }, eventToHTMLElement(ev), (res) => {
+          if (Number.isFinite(res)) {
+            value = res
+            onChange(value)
+          }
+          shown = false
+        })
+      }
+    }}
+  >
+    <svelte:fragment slot="content">
+      {#if value != null}
+        <span class="caption-color overflow-label pointer-events-none"><TimePresenter {value} /></span>
+      {:else}
+        <span class="content-dark-color pointer-events-none"><Label label={placeholder} /></span>
+      {/if}
+    </svelte:fragment>
+  </Button>
+{:else if readonly}
+  {#if value != null}
+    <span class="caption-color overflow-label"><TimePresenter {value} /></span>
+  {:else}
+    <span class="content-dark-color"><Label label={placeholder} /></span>
+  {/if}
+{:else}
+  <EditBox {placeholder} bind:value format={'number'} {autoFocus} on:change={_onchange} />
+{/if}
diff --git a/plugins/tracker-resources/src/components/issues/timereport/ReportedTimeEditor.svelte b/plugins/tracker-resources/src/components/issues/timereport/ReportedTimeEditor.svelte
index 60d833f2e6..103e687bf6 100644
--- a/plugins/tracker-resources/src/components/issues/timereport/ReportedTimeEditor.svelte
+++ b/plugins/tracker-resources/src/components/issues/timereport/ReportedTimeEditor.svelte
@@ -62,9 +62,13 @@
 
 {#if kind === 'link'}
   <!-- svelte-ignore a11y-click-events-have-key-events -->
-  <div id="ReportedTimeEditor" class="link-container {size} flex-between" on:click={showReports}>
+  <div
+    id="ReportedTimeEditor"
+    class="link-container antiButton link {size} flex-grow flex-between"
+    on:click={showReports}
+  >
     {#if value !== undefined}
-      <span class="overflow-label">
+      <span class="flex-row-center">
         <TimePresenter {value} />
         {#if childTime !== 0}
           / <TimePresenter value={childTime} />
@@ -78,7 +82,7 @@
     </div>
   </div>
 {:else if value !== undefined}
-  <span class="overflow-label">
+  <span class="flex-row-center">
     <TimePresenter {value} />
     {#if childTime !== 0}
       / <TimePresenter value={childTime} />
@@ -90,24 +94,7 @@
 
 <style lang="scss">
   .link-container {
-    display: flex;
-    align-items: center;
-    padding: 0 0.875rem;
-    width: 100%;
-    color: var(--theme-caption-color);
-    border: 1px solid transparent;
-    border-radius: 0.25rem;
-    cursor: pointer;
-
-    &.small {
-      height: 1.5rem;
-    }
-    &.medium {
-      height: 2rem;
-    }
-    &.large {
-      height: 2.25rem;
-    }
+    padding: 0px 0.75rem;
     .add-action {
       visibility: hidden;
     }
diff --git a/plugins/tracker-resources/src/components/issues/timereport/TimeSpendReports.svelte b/plugins/tracker-resources/src/components/issues/timereport/TimeSpendReports.svelte
index e6e0661ef4..b238a20922 100644
--- a/plugins/tracker-resources/src/components/issues/timereport/TimeSpendReports.svelte
+++ b/plugins/tracker-resources/src/components/issues/timereport/TimeSpendReports.svelte
@@ -46,7 +46,7 @@
         <Label label={tracker.string.ReportedTime} />:
         <span class="caption-color"><TimePresenter value={reportedTime} /></span>.
         <Label label={tracker.string.TimeSpendReports} />:
-        <span class="caption-color"><TimePresenter value={floorFractionDigits(total / 8, 3)} /></span>
+        <span class="caption-color"><TimePresenter value={floorFractionDigits(total, 3)} /></span>
       </span>
     </svelte:fragment>
     <TimeSpendReportsList {reports} />
diff --git a/plugins/tracker-resources/src/index.ts b/plugins/tracker-resources/src/index.ts
index 9fca32c172..b6c3ecd3a6 100644
--- a/plugins/tracker-resources/src/index.ts
+++ b/plugins/tracker-resources/src/index.ts
@@ -142,6 +142,9 @@ import ProjectSpacePresenter from './components/projects/ProjectSpacePresenter.s
 
 import { get } from 'svelte/store'
 
+import TimePresenter from './components/issues/timereport/TimePresenter.svelte'
+import EstimationValueEditor from './components/issues/timereport/EstimationValueEditor.svelte'
+
 export { default as SubIssueList } from './components/issues/edit/SubIssueList.svelte'
 export { default as IssueStatusIcon } from './components/issues/IssueStatusIcon.svelte'
 export { default as StatusPresenter } from './components/issues/StatusPresenter.svelte'
@@ -479,7 +482,9 @@ export default async (): Promise<Resources> => ({
     ProjectFilterValuePresenter,
     ComponentFilterValuePresenter,
     EditRelatedTargets,
-    EditRelatedTargetsPopup
+    EditRelatedTargetsPopup,
+    TimePresenter,
+    EstimationValueEditor
   },
   completion: {
     IssueQuery: async (client: Client, query: string, filter?: { in?: RelatedDocument[], nin?: RelatedDocument[] }) =>
diff --git a/plugins/tracker-resources/src/plugin.ts b/plugins/tracker-resources/src/plugin.ts
index a81255d92d..8d311412ac 100644
--- a/plugins/tracker-resources/src/plugin.ts
+++ b/plugins/tracker-resources/src/plugin.ts
@@ -261,6 +261,7 @@ export default mergeIds(trackerId, tracker, {
 
     Estimation: '' as IntlString,
     ReportedTime: '' as IntlString,
+    RemainingTime: '' as IntlString,
     TimeSpendReport: '' as IntlString,
     TimeSpendReportAdd: '' as IntlString,
     TimeSpendReports: '' as IntlString,
@@ -355,6 +356,8 @@ export default mergeIds(trackerId, tracker, {
     MilestoneDatePresenter: '' as AnyComponent,
     EditMilestone: '' as AnyComponent,
     ReportedTimeEditor: '' as AnyComponent,
+    TimePresenter: '' as AnyComponent,
+    EstimationValueEditor: '' as AnyComponent,
     TimeSpendReport: '' as AnyComponent,
     EstimationEditor: '' as AnyComponent,
     TemplateEstimationEditor: '' as AnyComponent,
diff --git a/plugins/tracker/src/index.ts b/plugins/tracker/src/index.ts
index 82808d2f17..03c53a245c 100644
--- a/plugins/tracker/src/index.ts
+++ b/plugins/tracker/src/index.ts
@@ -208,6 +208,9 @@ export interface Issue extends Task {
   // Estimation in man hours
   estimation: number
 
+  // Remaining time in man hours
+  remainingTime: number
+
   // ReportedTime time, auto updated using trigger.
   reportedTime: number
   // Collection of reportedTime entries, for proper time estimations per person.
@@ -393,6 +396,8 @@ export default plugin(trackerId, {
     TypeMilestoneStatus: '' as Ref<Class<Type<MilestoneStatus>>>,
     TimeSpendReport: '' as Ref<Class<TimeSpendReport>>,
     TypeReportedTime: '' as Ref<Class<Type<number>>>,
+    TypeEstimation: '' as Ref<Class<Type<number>>>,
+    TypeRemainingTime: '' as Ref<Class<Type<number>>>,
     RelatedIssueTarget: '' as Ref<Class<RelatedIssueTarget>>
   },
   ids: {
diff --git a/plugins/view-resources/src/components/ViewOptionsButton.svelte b/plugins/view-resources/src/components/ViewOptionsButton.svelte
index dfeaca13e2..7709810f5c 100644
--- a/plugins/view-resources/src/components/ViewOptionsButton.svelte
+++ b/plugins/view-resources/src/components/ViewOptionsButton.svelte
@@ -77,7 +77,7 @@
     }
     mergedModel.groupBy = Array.from(new Set([...mergedModel.groupBy, ...customAttributes]))
     mergedModel.groupBy = mergedModel.groupBy.filter((it, idx, arr) => arr.indexOf(it) === idx)
-    mergedModel.orderBy = mergedModel.orderBy.filter((it, idx, arr) => arr.indexOf(it) === idx)
+    mergedModel.orderBy = mergedModel.orderBy.filter((it, idx, arr) => arr.findIndex((q) => it[0] === q[0]) === idx)
     mergedModel.other = mergedModel.other.filter((it, idx, arr) => arr.findIndex((q) => q.key === it.key) === idx)
 
     showPopup(
diff --git a/server-plugins/tracker-resources/src/index.ts b/server-plugins/tracker-resources/src/index.ts
index 2bf7fc9212..92944111fe 100644
--- a/server-plugins/tracker-resources/src/index.ts
+++ b/server-plugins/tracker-resources/src/index.ts
@@ -270,6 +270,7 @@ async function doTimeReportUpdate (cud: TxCUD<TimeSpendReport>, tx: Tx, control:
       ]
       const [currentIssue] = await control.findAll(tracker.class.Issue, { _id: parentTx.objectId }, { limit: 1 })
       currentIssue.reportedTime += ccud.attributes.value
+      currentIssue.remainingTime = Math.max(0, currentIssue.estimation - currentIssue.reportedTime)
       updateIssueParentEstimations(currentIssue, res, control, currentIssue.parents, currentIssue.parents)
       return res
     }
@@ -294,6 +295,7 @@ async function doTimeReportUpdate (cud: TxCUD<TimeSpendReport>, tx: Tx, control:
           )
           currentIssue.reportedTime -= doc.value
           currentIssue.reportedTime += upd.operations.value
+          currentIssue.remainingTime = Math.max(0, currentIssue.estimation - currentIssue.reportedTime)
         }
 
         updateIssueParentEstimations(currentIssue, res, control, currentIssue.parents, currentIssue.parents)
@@ -317,6 +319,7 @@ async function doTimeReportUpdate (cud: TxCUD<TimeSpendReport>, tx: Tx, control:
         ]
         const [currentIssue] = await control.findAll(tracker.class.Issue, { _id: parentTx.objectId }, { limit: 1 })
         currentIssue.reportedTime -= doc.value
+        currentIssue.remainingTime = Math.max(0, currentIssue.estimation - currentIssue.reportedTime)
         updateIssueParentEstimations(currentIssue, res, control, currentIssue.parents, currentIssue.parents)
         return res
       }
@@ -377,12 +380,23 @@ async function doIssueUpdate (
 
   if (
     Object.prototype.hasOwnProperty.call(updateTx.operations, 'estimation') ||
-    Object.prototype.hasOwnProperty.call(updateTx.operations, 'reportedTime')
+    Object.prototype.hasOwnProperty.call(updateTx.operations, 'reportedTime') ||
+    (Object.prototype.hasOwnProperty.call(updateTx.operations, '$inc') &&
+      Object.prototype.hasOwnProperty.call(updateTx.operations.$inc, 'reportedTime')) ||
+    (Object.prototype.hasOwnProperty.call(updateTx.operations, '$dec') &&
+      Object.prototype.hasOwnProperty.call(updateTx.operations.$inc, 'reportedTime'))
   ) {
     const issue = await getCurrentIssue()
 
     issue.estimation = updateTx.operations.estimation ?? issue.estimation
     issue.reportedTime = updateTx.operations.reportedTime ?? issue.reportedTime
+    issue.remainingTime = Math.max(0, issue.estimation - issue.reportedTime)
+
+    res.push(
+      control.txFactory.createTxUpdateDoc(tracker.class.Issue, issue.space, issue._id, {
+        remainingTime: issue.remainingTime
+      })
+    )
 
     updateIssueParentEstimations(issue, res, control, issue.parents, issue.parents)
   }