Should I Call in Sick the Night Before or Morning Of?

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What Does Calling in Sick Really Mean?

Calling in sick is the act of informing your employer that you will not come to work due to illness or health-related reasons. This communication is essential because it allows your employer to make necessary adjustments, such as rescheduling tasks, calling in another employee, or altering deadlines. It also protects your health and the health of your coworkers by preventing the spread of contagious illnesses.

Typically, calling in sick involves contacting your direct supervisor, manager, or human resources department. The preferred method—phone, text, email, or company app—depends on your workplace’s policies. For example, some companies require a phone call to hear your voice, while others allow texting or emailing. It is important to know and follow these guidelines.

Imagine you have a shift starting at 8 a.m. the next day and begin feeling feverish and achy in the evening. Calling your employer at 8 p.m. to report you are sick gives them time to arrange coverage. Conversely, if you wake up with sudden symptoms, calling at 6 a.m. before your shift allows timely notification. Both scenarios are examples of calling in sick, but the timing and method affect how your workplace responds.

What Is the Difference Between Calling in Sick the Night Before vs. the Morning Of?

The main difference lies in the timing and how much notice you provide. Calling in sick the night before means you notify your employer the evening prior to your scheduled shift, usually because you already feel unwell or suspect you will be too ill to work. This allows your employer maximum time to adjust staffing or reschedule work.

Calling in sick the morning of means you notify your employer on the day of your shift, often shortly before starting work. This usually happens when symptoms develop overnight or suddenly in the morning. While not ideal for the employer’s scheduling, it is understandable when illness strikes unexpectedly.

Expanded Example:

If your shift starts at 9 a.m. Monday:

• Calling the night before: You call Sunday at 8 p.m., explaining you feel unwell and will not come in Monday. This early notice lets your employer find a replacement or rearrange duties.
• Calling the morning of: You wake up Monday at 6 a.m. with a sore throat and fever. You call immediately to inform your employer, giving as much early notice as possible.

While calling the night before is preferable for planning, calling the morning of is acceptable if symptoms appear suddenly. In either case, notifying your employer as soon as possible shows respect and responsibility.

Why Does the Timing of Calling in Sick Matter For You and Your Employer?

The timing of your call affects several important factors:

• Workplace Planning: Earlier notification allows your employer to arrange coverage, assign tasks to others, or reschedule meetings. For example, if you call the night before, your manager has time to contact another employee to cover your shift. Calling late or just before your shift makes it harder to find a replacement, potentially causing workflow disruptions.

• Professionalism and Respect: Prompt calls demonstrate that you take your job seriously and respect your coworkers. It shows you are mindful of how your absence affects the team. This can build trust and goodwill with supervisors.

• Health and Safety: Early communication encourages you to start resting promptly and prevents you from spreading contagious illness to colleagues. If you call only after arriving at work feeling unwell, you risk exposing others.

• Compliance with Policies: Many companies have specific rules about when and how to report sickness. Following these ensures you avoid disciplinary action or misunderstandings.

• Your Own Well-being: Recognizing symptoms early and calling in sick helps you recover faster and reduces the chance of worsening illness or complications.

For example, if you work in a customer-facing role and call the night before, your manager can ensure someone else is ready to handle customer needs. If you call just five minutes before work starts, customers and coworkers may be left waiting.

What Are Common Mistakes People Make When Calling in Sick?

Many people make avoidable errors when calling in sick, which can cause workplace frustration or personal stress. Common mistakes include:

• Waiting Too Long to Notify: Delaying the call until after your scheduled start time can inconvenience your employer and coworkers. Aim to call as soon as you realize you won’t be able to work.

• Not Following Company Policies: Some workplaces require a phone call rather than texting or emailing, or have set times to call in. Ignoring these rules can result in disciplinary action.

• Oversharing Details: You don’t need to describe every symptom or medical history. A simple statement that you are ill and unable to work is sufficient.

• Failing to Update: If your illness lasts multiple days, failing to keep your employer informed can create confusion.

• Using Vague Language: Saying “I’m not feeling well” without clarifying you will be absent can cause misunderstandings.

Concrete Steps to Avoid Mistakes:

1. Review your employee handbook or HR guidelines to know how and when to report sickness.
2. Prepare a brief but clear message in advance (see next section).
3. Call as soon as you anticipate missing work, ideally the night before or early morning.
4. If absent for multiple days, provide regular updates on your status.
5. Keep your message professional and to the point.

How Should You Decide When to Call in Sick?

Deciding when to call in sick depends on your symptoms, your job’s demands, and your workplace’s expectations. Follow these practical guidelines:

1. Monitor Your Health Closely: If you notice symptoms like fever, vomiting, severe headache, or contagious conditions, plan to stay home. If symptoms start mildly in the evening, call in sick that night.

1. Evaluate Your Ability to Work Safely: Consider if your illness impairs your performance or poses a risk to coworkers. For example, if you work with food or vulnerable populations, calling in sick early is especially important.

1. Check Your Employer’s Call-in Policy: Some employers require notice at least a certain number of hours before a shift. Others allow same-day calls. Knowing this helps you comply.

1. Prepare to Call or Message Promptly: Have your phone or computer ready to contact your supervisor as soon as you decide not to work.

1. If Symptoms Develop Overnight: Call as early as possible in the morning to give your employer time.

Example Scenario:

If you earn $400 per month at a part-time job starting at 7 a.m. and wake up feeling sick at 6 a.m., call immediately rather than waiting until after work starts. If you start feeling ill the night before, call then to maximize notice.

What Exactly Should You Say When Calling in Sick?

Having a clear, professional script ready can ease the stress of calling in sick. Here is a sample you can adapt whether calling the night before or the morning of your shift:

• “Hello, this is [Your Name]. I’m calling to let you know that I’m feeling unwell and will not be able to come in for my shift tomorrow/morning. I wanted to inform you as early as possible so you have time to adjust plans. I’ll keep you updated on my condition and appreciate your understanding.”

If you prefer texting or emailing, use similar wording. For example, a text might say:

• “Hi [Manager’s Name], this is [Your Name]. I’m not feeling well and won’t be able to work my shift tomorrow/morning. I’ll keep you updated. Thanks for understanding.”

Avoid giving too many medical details or excuses; a simple honest message is best.

What Should You Do After Calling in Sick?

After notifying your employer, take these steps to manage your health and maintain professionalism:

• Rest and Follow Medical Advice: Prioritize your recovery. If symptoms worsen or persist, see a healthcare provider.

• Check Company Policies on Documentation: Some employers require a doctor’s note for absences lasting multiple days. Know these rules to avoid issues.

• Keep Your Employer Updated: If you expect to be out longer than one day, send daily updates or as your employer requests.

• Plan Your Return to Work: Only return when you feel well enough to perform your duties and are no longer contagious. If needed, inform your employer about your readiness.

• Prepare to Catch Up: When you return, ask if there is any important information or tasks you missed and how you can help get back on track.

This approach demonstrates responsibility and helps preserve good relationships at work.

If you want more detailed guidance on sick leave policies and timing, see articles like How Many Hours Before Calling in Sick? and Should I Call Out Sick Today?.

Frequently asked questions

Is it better to call in sick the night before or the morning of?

Calling the night before is preferable because it gives your employer more time to adjust, but calling the morning of is acceptable if symptoms arise suddenly. Always notify as soon as possible.

What if I feel sick but don’t want to miss work?

Consider whether your illness affects your job performance or risks spreading to others. If so, calling in sick protects both you and your coworkers.

Can I call in sick if I don’t have a doctor’s note?

Generally, you can call in sick without a doctor’s note for a short absence. Some employers require a note for longer absences or repeated sick days.

What if my workplace prefers texting instead of calling?

Always follow your employer’s preferred communication method. If texting is allowed, keep the message clear and professional, similar to a phone call.

How far in advance should I call in sick?

Check your workplace policy, but ideally give at least several hours’ notice. Calling the night before or early morning is best.