diff --git a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
index d324eb4..5aecb51 100644
--- a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
+++ b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
@@ -13,7 +13,6 @@ import ru.ulstu.conference.model.ConferenceDto;
 import ru.ulstu.conference.model.ConferenceFilterDto;
 import ru.ulstu.conference.model.ConferenceUser;
 import ru.ulstu.conference.service.ConferenceService;
-import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.user.model.User;
 import springfox.documentation.annotations.ApiIgnore;
 
@@ -22,9 +21,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.List;
-import java.util.stream.Collectors;
 
-import static org.springframework.util.StringUtils.isEmpty;
 import static ru.ulstu.core.controller.Navigation.CONFERENCES_PAGE;
 import static ru.ulstu.core.controller.Navigation.CONFERENCE_PAGE;
 import static ru.ulstu.core.controller.Navigation.REDIRECT_TO;
@@ -77,13 +74,8 @@ public class ConferenceController {
 
     @PostMapping(value = "/conference", params = "save")
     public String save(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
-        filterEmptyDeadlines(conferenceDto);
-        for (Deadline deadline : conferenceDto.getDeadlines()) {
-            if (deadline.getDate() == null || deadline.getDescription().isEmpty()) {
-                errors.rejectValue("deadlines", "errorCode", "Все поля дедлайна должны быть заполнены");
-                return CONFERENCE_PAGE;
-            }
-        }
+        conferenceService.filterEmptyDeadlines(conferenceDto);
+        conferenceService.checkEmptyFieldsOfDeadline(conferenceDto, errors);
         if (errors.hasErrors()) {
             return CONFERENCE_PAGE;
         }
@@ -93,11 +85,11 @@ public class ConferenceController {
 
     @PostMapping(value = "/conference", params = "addDeadline")
     public String addDeadline(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
-        filterEmptyDeadlines(conferenceDto);
+        conferenceService.filterEmptyDeadlines(conferenceDto);
         if (errors.hasErrors()) {
             return CONFERENCE_PAGE;
         }
-        conferenceDto.getDeadlines().add(new Deadline());
+        conferenceService.addDeadline(conferenceDto);
         return CONFERENCE_PAGE;
     }
 
@@ -173,9 +165,4 @@ public class ConferenceController {
         return years;
     }
 
-    private void filterEmptyDeadlines(ConferenceDto conferenceDto) {
-        conferenceDto.setDeadlines(conferenceDto.getDeadlines().stream()
-                .filter(dto -> dto.getDate() != null || !isEmpty(dto.getDescription()))
-                .collect(Collectors.toList()));
-    }
 }
diff --git a/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java b/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java
index 9449b12..ddb8130 100644
--- a/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java
@@ -8,6 +8,7 @@ import ru.ulstu.ping.service.PingService;
 import ru.ulstu.user.service.MailService;
 import ru.ulstu.user.service.UserService;
 
+import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
@@ -15,7 +16,7 @@ import java.util.Map;
 @Service
 public class ConferenceNotificationService {
 
-    private final static int YESTERDAY = 0;
+    private final static int YESTERDAY = -1;
     private final static int DAYS_TO_DEADLINE_NOTIFICATION = 7;
     private final static String TEMPLATE_PING = "conferencePingNotification";
     private final static String TEMPLATE_DEADLINE = "conferenceDeadlineNotification";
@@ -41,24 +42,23 @@ public class ConferenceNotificationService {
         this.pingService = pingService;
     }
 
-    public void sendDeadlineNotifications(List<Conference> conferences, boolean isDeadlineBeforeWeek) {
+    public void sendDeadlineNotifications(List<Conference> conferences) {
         Date now = DateUtils.addDays(new Date(), DAYS_TO_DEADLINE_NOTIFICATION);
         conferences
                 .stream()
-                .filter(conference -> needToSendDeadlineNotification(conference, now, isDeadlineBeforeWeek))
+                .filter(conference -> needToSendDeadlineNotification(conference, now))
                 .forEach(this::sendMessageDeadline);
     }
 
-    private boolean needToSendDeadlineNotification(Conference conference, Date compareDate, boolean isDeadlineBeforeWeek) {
+    private boolean needToSendDeadlineNotification(Conference conference, Date compareDate) {
         return (conference.getNextDeadline().isPresent())
-                && (compareDate.before(conference.getNextDeadline().get().getDate()) && isDeadlineBeforeWeek
-                || compareDate.after(conference.getNextDeadline().get().getDate()) && !isDeadlineBeforeWeek)
-                && conference.getNextDeadline().get().getDate().after(new Date());
+                && conference.getNextDeadline().get().getDate().after(new Date())
+                && conference.getNextDeadline().get().getDate().before(compareDate);
     }
 
     private void sendMessageDeadline(Conference conference) {
         Map<String, Object> variables = ImmutableMap.of("conference", conference);
-        sendForAllParticipals(variables, conference, TEMPLATE_DEADLINE, TITLE_DEADLINE);
+        sendForAllParticipants(variables, conference, TEMPLATE_DEADLINE, String.format(TITLE_DEADLINE, conference.getTitle()));
     }
 
     public void sendCreateNotification(Conference conference) {
@@ -68,29 +68,31 @@ public class ConferenceNotificationService {
 
     public void updateDeadlineNotification(Conference conference) {
         Map<String, Object> variables = ImmutableMap.of("conference", conference);
-        sendForAllParticipals(variables, conference, TEMPLATE_UPDATE_DEADLINES, String.format(TITLE_UPDATE_DEADLINES, conference.getTitle()));
+        sendForAllParticipants(variables, conference, TEMPLATE_UPDATE_DEADLINES, String.format(TITLE_UPDATE_DEADLINES, conference.getTitle()));
     }
 
     public void updateConferencesDatesNotification(Conference conference, Date oldBeginDate, Date oldEndDate) {
         Map<String, Object> variables = ImmutableMap.of("conference", conference, "oldBeginDate", oldBeginDate, "oldEndDate", oldEndDate);
-        sendForAllParticipals(variables, conference, TEMPLATE_UPDATE_DATES, String.format(TITLE_UPDATE_DATES, conference.getTitle()));
+        sendForAllParticipants(variables, conference, TEMPLATE_UPDATE_DATES, String.format(TITLE_UPDATE_DATES, conference.getTitle()));
     }
 
     private void sendForAllUsers(Map<String, Object> variables, String template, String title) {
         userService.findAll().forEach(user -> mailService.sendEmailFromTemplate(variables, user, template, title));
     }
 
-    private void sendForAllParticipals(Map<String, Object> variables, Conference conference, String template, String title) {
+    private void sendForAllParticipants(Map<String, Object> variables, Conference conference, String template, String title) {
         conference.getUsers().forEach(conferenceUser -> mailService.sendEmailFromTemplate(variables, conferenceUser.getUser(), template, title));
     }
 
 
     public void sendPingNotifications(List<Conference> conferences) {
-        Date yesterday = DateUtils.addDays(new Date(), YESTERDAY);
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(new Date());
+        calendar.add(Calendar.DAY_OF_MONTH, YESTERDAY);
         conferences
                 .stream()
                 .filter(conference -> {
-                    Integer pingCount = pingService.countPingYesterday(conference, yesterday);
+                    Integer pingCount = pingService.countPingYesterday(conference, calendar);
                     return needToSendPingNotification(conference, pingCount);
                 })
                 .forEach(this::sendMessagePing);
@@ -106,6 +108,6 @@ public class ConferenceNotificationService {
 
     private void sendMessagePing(Conference conference) {
         Map<String, Object> variables = ImmutableMap.of("conference", conference);
-        sendForAllParticipals(variables, conference, TEMPLATE_PING, String.format(TITLE_PING, conference.getTitle()));
+        sendForAllParticipants(variables, conference, TEMPLATE_PING, String.format(TITLE_PING, conference.getTitle()));
     }
 }
diff --git a/src/main/java/ru/ulstu/conference/service/ConferenceScheduler.java b/src/main/java/ru/ulstu/conference/service/ConferenceScheduler.java
index f55f885..6f8fe90 100644
--- a/src/main/java/ru/ulstu/conference/service/ConferenceScheduler.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceScheduler.java
@@ -24,17 +24,10 @@ public class ConferenceScheduler {
     @Scheduled(cron = "0 0 8 * * MON", zone = "Europe/Samara")
     public void checkDeadlineBeforeWeek() {
         log.debug("ConferenceScheduler.checkDeadlineBeforeWeek started");
-        conferenceNotificationService.sendDeadlineNotifications(conferenceService.findAll(), IS_DEADLINE_NOTIFICATION_BEFORE_WEEK);
+        conferenceNotificationService.sendDeadlineNotifications(conferenceService.findAll());
         log.debug("ConferenceScheduler.checkDeadlineBeforeWeek finished");
     }
 
-    @Scheduled(cron = "0 0 8 * * ?", zone = "Europe/Samara")
-    public void checkDeadlineAfterWeek() {
-        log.debug("ConferenceScheduler.checkDeadlineAfterWeek started");
-        conferenceNotificationService.sendDeadlineNotifications(conferenceService.findAll(), !IS_DEADLINE_NOTIFICATION_BEFORE_WEEK);
-        log.debug("ConferenceScheduler.checkDeadlineAfterWeek finished");
-    }
-
     @Scheduled(cron = "0 0 8 * * *", zone = "Europe/Samara")
     public void checkNewPing() {
         log.debug("ConferenceScheduler.checkPing started");
diff --git a/src/main/java/ru/ulstu/conference/service/ConferenceService.java b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
index 0c1d37d..38de435 100644
--- a/src/main/java/ru/ulstu/conference/service/ConferenceService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
@@ -5,6 +5,7 @@ import org.springframework.data.domain.Sort;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.ui.ModelMap;
+import org.springframework.validation.Errors;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.conference.model.ConferenceDto;
 import ru.ulstu.conference.model.ConferenceFilterDto;
@@ -115,7 +116,10 @@ public class ConferenceService {
         Date oldEndDate = conference.getEndDate();
         conferenceRepository.save(copyFromDto(conference, conferenceDto));
         eventService.updateConferenceDeadlines(conference);
-        sendNotificationAfterUpdate(conference, oldDeadlines, oldBeginDate, oldEndDate);
+        sendNotificationAfterUpdateDeadlines(conference, oldDeadlines);
+        if (!conference.getBeginDate().equals(oldBeginDate) || !conference.getEndDate().equals(oldEndDate)) {
+            conferenceNotificationService.updateConferencesDatesNotification(conference, oldBeginDate, oldEndDate);
+        }
         conferenceDto.getRemovedDeadlineIds().forEach(deadlineService::remove);
         return conference.getId();
     }
@@ -127,6 +131,11 @@ public class ConferenceService {
         }
     }
 
+    public void addDeadline(ConferenceDto conferenceDto) {
+        conferenceDto.getDeadlines().add(new Deadline());
+    }
+
+
     public void removeDeadline(ConferenceDto conferenceDto, Integer deadlineIndex) throws IOException {
         if (conferenceDto.getDeadlines().get(deadlineIndex).getId() != null) {
             conferenceDto.getRemovedDeadlineIds().add(conferenceDto.getDeadlines().get(deadlineIndex).getId());
@@ -243,29 +252,17 @@ public class ConferenceService {
         modelMap.addAttribute("offshoreSales", offshoreSales);
     }
 
-    public void sendNotificationAfterUpdate(Conference conference, List<Deadline> oldDeadlines, Date oldBeginDate, Date oldEndDate) {
-        boolean isSendNotificationAboutDeadlines = false;
+    public void sendNotificationAfterUpdateDeadlines(Conference conference, List<Deadline> oldDeadlines) {
         if (oldDeadlines.size() != conference.getDeadlines().size()) {
-            isSendNotificationAboutDeadlines = true;
-        }
-        for (Deadline deadline : conference.getDeadlines()) {
-            if (isSendNotificationAboutDeadlines) {
-                break;
-            }
-            for (Deadline oldDeadline : oldDeadlines) {
-                if (deadline.getId().equals(oldDeadline.getId())) {
-                    if (!deadline.getDescription().equals(oldDeadline.getDescription()) || !deadline.getDate().equals(oldDeadline.getDate())) {
-                        isSendNotificationAboutDeadlines = true;
-                        break;
-                    }
-                }
-            }
-        }
-        if (isSendNotificationAboutDeadlines) {
             conferenceNotificationService.updateDeadlineNotification(conference);
+            return;
         }
-        if (!conference.getBeginDate().equals(oldBeginDate) || !conference.getEndDate().equals(oldEndDate)) {
-            conferenceNotificationService.updateConferencesDatesNotification(conference, oldBeginDate, oldEndDate);
+
+        if (conference.getDeadlines()
+                .stream()
+                .filter(deadline -> !oldDeadlines.contains(deadline))
+                .count() > 0) {
+            conferenceNotificationService.updateDeadlineNotification(conference);
         }
     }
 
@@ -274,4 +271,19 @@ public class ConferenceService {
         newDeadline.setId(oldDeadline.getId());
         return newDeadline;
     }
+
+    public void checkEmptyFieldsOfDeadline(ConferenceDto conferenceDto, Errors errors) {
+        for (Deadline deadline : conferenceDto.getDeadlines()) {
+            if (deadline.getDate() == null || deadline.getDescription().isEmpty()) {
+                errors.rejectValue("deadlines", "errorCode", "Все поля дедлайна должны быть заполнены");
+            }
+        }
+    }
+
+
+    public void filterEmptyDeadlines(ConferenceDto conferenceDto) {
+        conferenceDto.setDeadlines(conferenceDto.getDeadlines().stream()
+                .filter(dto -> dto.getDate() != null || !org.springframework.util.StringUtils.isEmpty(dto.getDescription()))
+                .collect(Collectors.toList()));
+    }
 }
diff --git a/src/main/java/ru/ulstu/deadline/model/Deadline.java b/src/main/java/ru/ulstu/deadline/model/Deadline.java
index 404e5c8..199427c 100644
--- a/src/main/java/ru/ulstu/deadline/model/Deadline.java
+++ b/src/main/java/ru/ulstu/deadline/model/Deadline.java
@@ -51,4 +51,21 @@ public class Deadline extends BaseEntity {
     public void setDate(Date date) {
         this.date = date;
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        if (!super.equals(o)) {
+            return false;
+        }
+        Deadline deadline = (Deadline) o;
+        return getId().equals(deadline.getId()) &&
+                description.equals(deadline.description) &&
+                date.equals(deadline.date);
+    }
 }
diff --git a/src/main/java/ru/ulstu/ping/service/PingService.java b/src/main/java/ru/ulstu/ping/service/PingService.java
index f24ed9d..f7156f0 100644
--- a/src/main/java/ru/ulstu/ping/service/PingService.java
+++ b/src/main/java/ru/ulstu/ping/service/PingService.java
@@ -29,11 +29,8 @@ public class PingService {
         pingRepository.save(newPing);
     }
 
-    public Integer countPingYesterday(Conference conference, Date yesterday) {
-        Calendar cal = Calendar.getInstance();
-        cal.setTime(yesterday);
-
-        return Math.toIntExact(pingRepository.countByConferenceAndDate(conference, cal.get(Calendar.DAY_OF_MONTH),
-                cal.get(Calendar.MONTH) + 1, cal.get(Calendar.YEAR)));
+    public Integer countPingYesterday(Conference conference, Calendar calendar) {
+        return Math.toIntExact(pingRepository.countByConferenceAndDate(conference, calendar.get(Calendar.DAY_OF_MONTH),
+                calendar.get(Calendar.MONTH) + 1, calendar.get(Calendar.YEAR)));
     }
 }
diff --git a/src/main/java/ru/ulstu/timeline/model/Event.java b/src/main/java/ru/ulstu/timeline/model/Event.java
index f53a52d..9409f21 100644
--- a/src/main/java/ru/ulstu/timeline/model/Event.java
+++ b/src/main/java/ru/ulstu/timeline/model/Event.java
@@ -19,6 +19,7 @@ import javax.persistence.OneToMany;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
 import javax.validation.constraints.NotNull;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
@@ -63,7 +64,7 @@ public class Event extends BaseEntity {
     private String description;
 
     @ManyToMany(fetch = FetchType.EAGER)
-    private List<User> recipients;
+    private List<User> recipients = new ArrayList<User>();
 
     @ManyToOne
     @JoinColumn(name = "child_id")
diff --git a/src/main/java/ru/ulstu/timeline/service/EventService.java b/src/main/java/ru/ulstu/timeline/service/EventService.java
index f4e2873..d2fa510 100644
--- a/src/main/java/ru/ulstu/timeline/service/EventService.java
+++ b/src/main/java/ru/ulstu/timeline/service/EventService.java
@@ -159,7 +159,7 @@ public class EventService {
             newEvent.setDescription("Дедлайн '" + deadline.getDescription() + "' конференции '" + newConference.getTitle() + "'");
             newConference.getUsers().forEach(conferenceUser -> newEvent.getRecipients().add(conferenceUser.getUser()));
             newEvent.setConference(newConference);
-            eventRepository.save(newEvent);
+            save(newEvent);
 
             timeline.getEvents().add(newEvent);
             timelineService.save(timeline);