diff --git a/web/app/common/api.js b/web/app/common/api.js
index 2f648d37..96ea41ef 100644
--- a/web/app/common/api.js
+++ b/web/app/common/api.js
@@ -100,9 +100,9 @@ export const removeComment = ({ id }) =>
     withCredentials: true,
   });
 
-export const blockUser = ({ id }) =>
+export const blockUser = ({ id, ttl }) =>
   fetcher.put({
-    url: `/admin/user/${id}?block=1`,
+    url: ttl === 'permanently' ? `/admin/user/${id}?block=1` : `/admin/user/${id}?block=1&ttl=${ttl}`,
     withCredentials: true,
   });
 
diff --git a/web/app/common/constants.js b/web/app/common/constants.js
index 8a0e38ca..c6fba2ad 100644
--- a/web/app/common/constants.js
+++ b/web/app/common/constants.js
@@ -18,6 +18,25 @@ const PROVIDER_NAMES = {
 const LS_COLLAPSE_KEY = '__remarkCollapsed';
 const LS_SORT_KEY = '__remarkSort';
 
+const BLOCKING_DURATIONS = [
+  {
+    label: 'Permanently',
+    value: 'permanently',
+  },
+  {
+    label: 'For a month',
+    value: `${30 * 60 * 24}m`,
+  },
+  {
+    label: 'For a week',
+    value: `${7 * 60 * 24}m`,
+  },
+  {
+    label: 'For a day',
+    value: `${60 * 24}m`,
+  },
+];
+
 module.exports = {
   BASE_URL,
   API_BASE,
@@ -32,4 +51,5 @@ module.exports = {
   DEFAULT_SORT,
   LS_COLLAPSE_KEY,
   LS_SORT_KEY,
+  BLOCKING_DURATIONS,
 };
diff --git a/web/app/components/blocked-users/__user-block-ttl/blocked-users__user-block-ttl.scss b/web/app/components/blocked-users/__user-block-ttl/blocked-users__user-block-ttl.scss
new file mode 100644
index 00000000..1ec52c28
--- /dev/null
+++ b/web/app/components/blocked-users/__user-block-ttl/blocked-users__user-block-ttl.scss
@@ -0,0 +1,3 @@
+.blocked-users__user-id {
+  color: #888;
+}
diff --git a/web/app/components/blocked-users/blocked-users.jsx b/web/app/components/blocked-users/blocked-users.jsx
index c6752411..77d1e932 100644
--- a/web/app/components/blocked-users/blocked-users.jsx
+++ b/web/app/components/blocked-users/blocked-users.jsx
@@ -51,6 +51,7 @@ export default class BlockedUsers extends Component {
                 <li className={b('blocked-users__list-item', {}, { view: isUserUnblocked ? 'invisible' : null })}>
                   <span className="blocked-users__username">{user.name}</span>{' '}
                   <span className="blocked-users__user-id">({user.id})</span>
+                  <span className="blocked-users__user-block-ttl"> until {formatTime(new Date(user.time))}</span>
                   {isUserUnblocked && (
                     <span {...getHandleClickProps(() => this.block(user))} className="blocked-users__action">
                       block
@@ -70,3 +71,14 @@ export default class BlockedUsers extends Component {
     );
   }
 }
+
+function formatTime(time) {
+  // 'ru-RU' adds a dot as a separator
+  const date = time.toLocaleDateString(['ru-RU'], { day: '2-digit', month: '2-digit', year: '2-digit' });
+
+  // do it manually because Intl API doesn't add leading zeros to hours; idk why
+  const hours = `0${time.getHours()}`.slice(-2);
+  const mins = `0${time.getMinutes()}`.slice(-2);
+
+  return `${date} at ${hours}:${mins}`;
+}
diff --git a/web/app/components/blocked-users/index.js b/web/app/components/blocked-users/index.js
index 73878021..454cfc95 100644
--- a/web/app/components/blocked-users/index.js
+++ b/web/app/components/blocked-users/index.js
@@ -6,6 +6,7 @@ require('./__action/blocked-users__action.scss');
 require('./__list/blocked-users__list.scss');
 
 require('./__list-item/blocked-users__list-item.scss');
+require('./__user-block-ttl/blocked-users__user-block-ttl.scss');
 require('./__list-item/_view/_invisible/blocked-users__list-item_view_invisible.scss');
 
 require('./__user-id/blocked-users__user-id.scss');
diff --git a/web/app/components/comment/__control/_select-label/comment__control_select-label.scss b/web/app/components/comment/__control/_select-label/comment__control_select-label.scss
new file mode 100644
index 00000000..8248322d
--- /dev/null
+++ b/web/app/components/comment/__control/_select-label/comment__control_select-label.scss
@@ -0,0 +1,10 @@
+.comment__control_select {
+  position: absolute;
+  left: 0;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  opacity: 0;
+  width: 100%;
+  cursor: pointer;
+}
diff --git a/web/app/components/comment/__control/_select/comment__control_select.scss b/web/app/components/comment/__control/_select/comment__control_select.scss
new file mode 100644
index 00000000..211c70ff
--- /dev/null
+++ b/web/app/components/comment/__control/_select/comment__control_select.scss
@@ -0,0 +1,9 @@
+.comment__control_select-label {
+  position: relative;
+  white-space: nowrap;
+  font-weight: 700;
+  &::after {
+    content: '▾';
+    margin-left: 2px;
+  }
+}
diff --git a/web/app/components/comment/comment.jsx b/web/app/components/comment/comment.jsx
index 07efd2ee..72d7b4da 100644
--- a/web/app/components/comment/comment.jsx
+++ b/web/app/components/comment/comment.jsx
@@ -3,7 +3,7 @@ import { h, Component } from 'preact';
 
 import api from 'common/api';
 import { getHandleClickProps } from 'common/accessibility';
-import { API_BASE, BASE_URL, COMMENT_NODE_CLASSNAME_PREFIX } from 'common/constants';
+import { API_BASE, BASE_URL, COMMENT_NODE_CLASSNAME_PREFIX, BLOCKING_DURATIONS } from 'common/constants';
 import { url } from 'common/settings';
 import store from 'common/store';
 
@@ -37,6 +37,8 @@ export default class Comment extends Component {
     this.onEdit = this.onEdit.bind(this);
     this.onReply = this.onReply.bind(this);
     this.onDeleteClick = this.onDeleteClick.bind(this);
+    this.onBlockUserClick = this.onBlockUserClick.bind(this);
+    this.onUnblockUserClick = this.onUnblockUserClick.bind(this);
   }
 
   componentWillReceiveProps(nextProps) {
@@ -164,17 +166,41 @@ export default class Comment extends Component {
     }
   }
 
-  toggleBlock(isBlocked) {
+  onBlockUserClick(e) {
     const {
       id,
       user: { id: userId },
     } = this.props.data;
-    const promptMessage = `Do you want to ${isBlocked ? 'unblock' : 'block'} this user?`;
+
+    const ttl = e.target.value;
+    const duration = BLOCKING_DURATIONS.find(el => el.value === ttl).label;
+    const promptMessage =
+      ttl === 'permanently'
+        ? 'Do you want to permanently block this user?'
+        : `Do you want to block this user (${duration.toLowerCase()})?`;
+    if (confirm(promptMessage)) {
+      this.setState({ userBlocked: true });
+
+      api
+        .blockUser({ id: userId, ttl })
+        .then(api.getComment({ id }))
+        .then(comment => store.replaceComment(comment));
+    }
+  }
+
+  onUnblockUserClick() {
+    const {
+      id,
+      user: { id: userId },
+    } = this.props.data;
+
+    const promptMessage = `Do you want to unblock this user?`;
 
     if (confirm(promptMessage)) {
-      this.setState({ userBlocked: !isBlocked });
+      this.setState({ userBlocked: false });
 
-      (isBlocked ? api.unblockUser : api.blockUser)({ id: userId })
+      api
+        .unblockUser({ id: userId })
         .then(api.getComment({ id }))
         .then(comment => store.replaceComment(comment));
     }
@@ -501,9 +527,26 @@ export default class Comment extends Component {
                   <span {...getHandleClickProps(() => this.togglePin(pinned))} className="comment__control">
                     {pinned ? 'Unpin' : 'Pin'}
                   </span>
-                  <span {...getHandleClickProps(() => this.toggleBlock(userBlocked))} className="comment__control">
-                    {userBlocked ? 'Unblock' : 'Block'}
-                  </span>
+
+                  {userBlocked && (
+                    <span {...getHandleClickProps(() => this.onUnblockUserClick())} className="comment__control">
+                      Unblock
+                    </span>
+                  )}
+
+                  {!userBlocked && (
+                    <span className="comment__control comment__control_select-label">
+                      Block
+                      {/* eslint-disable jsx-a11y/no-onchange */}
+                      <select className="comment__control_select" onChange={this.onBlockUserClick}>
+                        <option disabled selected value>
+                          {' '}
+                          Blocking period{' '}
+                        </option>
+                        {BLOCKING_DURATIONS.map(block => <option value={block.value}>{block.label}</option>)}
+                      </select>
+                    </span>
+                  )}
 
                   {!deleted && (
                     <span {...getHandleClickProps(this.onDeleteClick)} className="comment__control">
diff --git a/web/app/components/comment/index.js b/web/app/components/comment/index.js
index 33518776..dcb2e024 100644
--- a/web/app/components/comment/index.js
+++ b/web/app/components/comment/index.js
@@ -13,6 +13,8 @@ require('./__avatar/_default/comment__avatar_default.scss');
 
 require('./__body/comment__body.scss');
 require('./__control/comment__control.scss');
+require('./__control/_select/comment__control_select.scss');
+require('./__control/_select-label/comment__control_select-label.scss');
 require('./__controls/comment__controls.scss');
 require('./__info/comment__info.scss');
 require('./__input/comment__input.scss');