Constant WhatsApp Messages After Work: Does It Count as Overtime?

May works as an administrative officer with regular office hours from 9 a.m. to 6 p.m., and her performance has always been satisfactory.In the past few months, however, her manager has been messaging her on WhatsApp almost every night around 10 or 11 p.m.: “Please help revise this Excel,” “We need this PowerPoint for tomorrow’s meeting,” “Can you reply to this client now?”

Although her contract does not state that she must work overtime, May worries that not responding will make her seem uncooperative or lacking “team spirit”, and that this may affect her performance review.As a result, she keeps doing “unpaid overtime”, her working hours are getting longer and her emotional well‑being is deteriorating.

This kind of “WhatsApp overtime” is, in fact, a daily reality for many employees in Hong Kong.

1. Do WhatsApp work messages count as overtime? Key points to understand

At the moment, there is no specific law in Hong Kong that clearly states that “WhatsApp work messages must be treated as overtime”.However, we can look at the issue from several angles.

1.1 No clear statutory definition of “overtime”

• Hong Kong does not yet have a “standard working hours” law.

• The Employment Ordinance mainly regulates matters such as rest days, holidays, continuous contracts, severance and long service payments.

• Overtime arrangements—whether there is overtime pay or time off in lieu—are usually agreed between employer and employee in the employment contract and/or company policies.​

In other words, whether WhatsApp work after hours is treated as overtime, and whether it is compensated, often depends on what is written in the contract and how the company actually operates.

1.2 When is after‑hours WhatsApp work more likely to be considered “working time”?

Several factors are often taken into account:

• Whether the message is a clear work instructionSent by a manager or the company, with content that is obviously work‑related rather than purely personal.

• Whether the employee is doing real workFor example, revising documents, drafting reports, handling clients or attending meetings, and not just replying “noted”.

• Whether it clearly intrudes on rest timeFor instance, late at night, on rest days or public holidays, and happening over many days.

• Whether it is occasional or frequentA one‑off urgent situation is very different from something that has become routine.

If these situations occur regularly, it is quite likely that the time could be seen as an extension of working hours.

1.3 Overtime compensation: what does Hong Kong law say?

• There is no legal requirement in Hong Kong that employers must provide overtime pay; it is subject to agreement between employer and employee.

• However, if the contract or staff handbook expressly provides for overtime compensation, and the employee works overtime according to instructions, the employer is generally expected to follow its own policy.

• Separately, if extensive unpaid overtime causes the employee’s effective hourly wage to fall below the statutory minimum wage, this may breach the Minimum Wage Ordinance.​

In short:

• WhatsApp work after hours may be considered overtime, especially where the employee is doing real work on a regular basis and it clearly eats into rest time.

• Whether there is any overtime compensation still depends on the contract terms, company policies and actual practice.

2. What can employees do? Four practical steps

2.1 First, understand your contract and company policies

It is worth taking a little time to review:

• Your employment contract and any staff handbook or HR policy;

• Whether “normal working hours” and “rest days” are clearly stated;

• How overtime is described:

  • Is there overtime pay or time off in lieu?

  • Does overtime require prior approval?

  • Are some positions explicitly considered “including a certain level of overtime”?

If OT is not mentioned at all, note this down—it becomes part of the context if there is a dispute in future.

2.2 Keep basic records and evidence

If you feel the overtime situation is becoming excessive, it is sensible to keep systematic records (not necessarily to complain immediately, but as a form of self‑protection):

• Keep WhatsApp / email records of work instructions and your completion of tasks;

• Use a simple Excel sheet or notebook to log the date, time, nature of work and how long it took;

• Distinguish between:

  • Simple communication (e.g. short updates);

  • Substantive work (e.g. revising a 10‑page report, preparing a proposal, handling a customer complaint).

If you ever need to speak with HR or external authorities, concrete records will be extremely helpful.​

2.3 Try to set boundaries gently but firmly

Many employees worry about being “labelled” if they speak up.However, long‑term overtime affects health and performance. You can use neutral, collaborative language to raise the issue:

• Acknowledge your manager’s trust first:

  • “Thank you for trusting me with so many urgent tasks.”

• Then explain your situation honestly:

  • “Recently the evening messages have become quite frequent. I’m finding it hard to fully switch off, and it’s starting to affect my rest and daytime performance.”

• Offer suggestions rather than pure complaints:

  • Ask if non‑urgent tasks can be arranged during office hours;

  • Propose a “normal response window”, e.g. non‑urgent matters after a certain time can be handled the next working day;

  • If there is an OT policy, politely ask whether you can follow it to apply for overtime pay or time off in lieu.

The goal is not confrontation, but to invite your manager to discuss a more sustainable way of working.

2.4 If the situation is serious and does not improve, consider seeking help

If “invisible overtime” has become the norm and:

• It is affecting your sleep, health and family life;

• You are expected to provide long‑term “free” overtime with no room for discussion;

• Reasonable suggestions have been rejected and nothing improves,

Then you may consider:

• Raising the issue with HR or higher management, staying factual and providing records where possible;

• If there is serious pressure, unreasonable overtime demands, or a suspicion that your effective hourly pay has dropped below the minimum wage, contacting appropriate bodies (such as the Labour Department) to understand your rights and available options.​

If you feel lost about career direction or how to set boundaries at work, speaking with a career coach or HR consultant can also help you rethink your next steps and job search strategy.

3. How should employers manage remote work and WhatsApp instructions more fairly?

If you are an employer or line manager, you probably do not want overtime disputes turning into formal complaints or online reputational issues.To prevent problems in the long run, it helps to act on both policy and culture.

3.1 Clarify policies in writing

In employment contracts, staff handbooks or HR policies, clearly set out:

• Normal working hours, rest days and any work‑from‑home arrangements;

• Principles for using digital tools (such as WhatsApp) for work communication;

• Overtime requirements and compensation:

  • Whether OT is paid or taken as time off in lieu;

  • Whether prior approval is required;

  • Whether certain grades are deemed to include a reasonable level of overtime.​

Clear documentation can greatly reduce misunderstandings and protect both the company and employees.

3.2 Lead by example in management culture

• Encourage managers not to habitually send non‑urgent work messages late at night;

• Where genuinely urgent after‑hours work is needed, be clear about the urgency level and, where appropriate, adjust workload or provide compensation afterwards;

• When employees raise concerns about workload or overtime pressure, be willing to review work allocation and processes rather than simply asking them to “push through”.

4. Want to refine your company’s OT and remote‑work practices?

If you are an employer and feel that your current arrangements for overtime, WhatsApp work communication and remote work are:

• Not clearly defined;

• Applied inconsistently by different managers;

• Potentially risky from a legal or employee‑relations perspective,

you may benefit from partnering with a professional HR consultant.

At Get More, we have supported over 5,000 clients across industries since 2010, offering solutions from Executive Search and HR Outsourcing to HR System Implementation. We can help you:

• Review and streamline your existing OT and remote‑work policies;

• Design clearer, practical internal guidelines and communication plans;

• Balance legal compliance, management efficiency and employee experience.​

If you would like to build clearer policies around overtime and remote work, you can invite readers to contact your team via your Contact page or WhatsApp button at the end of this article.

This article is compiled based on publicly available information and general HR practices and is for reference only. It does not constitute legal advice or any form of hiring recommendation. For professional advice tailored to your company’s specific situation, please contact the Get More consulting team or consult a qualified legal professional.