Physician After-Hours EHR Time Statistics

One large international study measured 26.5 minutes of after-hours EHR use per day among US clinicians. Another national study reported 4.4 minutes per visit. Both numbers are useful, but they are not interchangeable. One uses a daily denominator; the other divides time by visits.

The definition of "after hours" changes across studies and EHR reports. Some systems count activity outside a fixed clock window. Others count time outside a clinician's scheduled hours, on unscheduled days, or during a vendor-defined evening period called pajama time. A solo physician should choose one definition before setting a baseline.

This brief reports the published units as written. It does not convert per-visit figures into daily totals or combine studies into a single average.

Daily and per-visit estimates

A cross-sectional study examined deidentified EHR metadata from 371 health systems in the United States and other countries. US clinicians averaged 90.2 minutes of active EHR use per day, compared with 59.1 minutes outside the United States. After-hours use averaged 26.5 minutes per day in the US group and 19.5 minutes in the non-US group.

The study used data from one EHR vendor. Its sample included physicians and advanced practice clinicians, so 26.5 minutes is not a physician-only national average. The health systems differed in structure, workload, and documentation rules.

A separate national study analyzed physician-level EHR measures across specialty types. Mean total EHR time was 27.2 minutes per visit, and mean after-hours time was 4.4 minutes per visit. The standard deviations were 31.7 and 5.4 minutes, respectively, showing wide variation among physicians.

Per-visit time can rise or fall even when a physician's total day stays the same. Visit length, specialty, panel complexity, documentation method, inbox volume, staffing, and appointment count all affect the denominator.

Inbox work supplies another view. A study of 1,275 primary care physicians measured 52 minutes of inbox management per workday. Nineteen minutes occurred outside work hours. Patient-initiated messages accounted for 28% of inbox time and results for 29%. Inbox management is only part of EHR work, so the 19-minute figure should not be added to a total from a different study.

For broader context, see the research briefs on physician workweek hours and daily inbox message volume.

Why estimates differ

Pajama time usually refers to active EHR use during a fixed evening, overnight, weekend, or holiday window. Time outside scheduled hours compares activity with the clinician's appointment schedule. The measures can disagree. A physician who finishes notes at 5:15 pm may register time outside scheduled hours but no pajama time if the evening window begins later.

The EHR must also decide when a session is active. A login can remain open while a physician steps away. Vendor algorithms often use clicks, keystrokes, navigation, or inactivity thresholds to estimate active time. Two systems can assign different durations to the same work pattern.

Self-reported estimates create a separate problem. A survey and log analysis of physicians and learners found that respondents overestimated EHR time per patient by 13.6 minutes and after-hours time by 5.63 hours compared with backend usage logs. That finding came from one organization and does not prove that every survey overstates time. It shows why a practice should label survey and audit-log data separately.

Variation between physicians can exceed variation explained by basic demographics. In a study of 50 primary care pediatricians with 3,498 weekly records, differences from one physician to another accounted for 52% of variation in total EHR use. Higher work relative value units were associated with more after-hours time. The study did not show that individual efficiency alone caused those differences.

Training stage matters too. A study of 622 resident physicians measured 45.6 minutes of EHR use per patient, with 13.5% occurring after hours. EHR time per patient declined with ambulatory experience, but the after-hours share did not. Resident schedules and supervision make that estimate unsuitable as a benchmark for an independent attending physician.

Burnout and after-hours work

After-hours EHR use is associated with exhaustion in observational studies, but association does not establish causation. Workload, staffing, workplace culture, documentation requirements, and physician well-being can influence one another.

One academic primary care study combined log measures with burnout surveys from 122 clinicians. The sample median was 68 minutes of after-hours EHR time per clinical full-time equivalent per week on scheduled clinic days. Clinicians in the two quartiles above that median had higher odds of emotional exhaustion than those in the lowest quartile. The confidence intervals were wide, and the measures were not associated with cynicism.

A systematic review screened 7,388 records and included 35 studies on EHR use and physician well-being. It identified total EHR time, after-hours time, inbox burden, documentation burden, EHR support, and perceived usability as factors organizations could address. The review did not identify one universal time threshold for burnout.

Longitudinal data show that the workload can change. An academic primary care study covering May 2019 through March 2023 found that EHR time per eight scheduled clinic hours increased by 28.4 minutes. Time outside scheduled hours increased on days with appointments and on unscheduled days. Those figures describe change over time, not the total number of after-hours minutes.

A broader study published in 2025 found that weekly EHR time rose after the start of the COVID-19 pandemic across primary care, medical subspecialties, and surgery. Mean primary care time increased from 10.6 to 11.3 hours per week. Message volume remained elevated. The authors could not evaluate message content or burnout from the vendor data.

Measure after-hours EHR work

An independent practice can start with four representative weeks. Avoid weeks dominated by vacation, an EHR conversion, or an unusual call schedule unless those periods are the subject of the review.

Write down the metric before exporting data. A workable definition might include active EHR minutes before the first scheduled appointment, after the last appointment, and on unscheduled days. If the EHR supplies both pajama time and time outside scheduled hours, track both without merging them.

Record the denominator beside every result:

1. Active after-hours minutes per workday.
2. Active after-hours minutes per eight scheduled clinical hours.
3. After-hours minutes per completed visit.
4. Minutes on unscheduled days.
5. The share of total active EHR time that occurred after hours.

Then separate the work by activity. Notes, orders, chart review, results, prescriptions, patient messages, and administrative forms point to different workflow changes. A total alone cannot show whether a documentation template, routing rule, staffing gap, or inbox policy deserves attention.

Compare like periods after a change. A study of 144 outpatient physicians found that virtual scribe use was associated with 1.1 fewer minutes of pajama time per appointment after three months, along with reductions in total EHR and note time. The study used a pre-post design at two academic medical centers, so it cannot prove that the scribe caused every observed change or predict the same result in a solo practice.

Administrative staff may prepare records, collect missing information, route forms, and manage defined message types when policy permits. The physician or another qualified professional should retain clinical assessment, prescribing, result interpretation, and exception handling. Practice policy, state law, payer rules, and the EHR audit trail determine the exact division of work.

Frequently Asked Questions

How much time do physicians spend on the EHR after hours?

Published estimates use different units. One international EHR log study measured 26.5 minutes per day among US clinicians. A national physician study measured 4.4 minutes per visit. Neither is a solo-practice average.

What is physician pajama time?

Pajama time is active EHR use during a defined evening, overnight, weekend, or holiday window. It may not match time outside scheduled appointment hours.

Is after-hours EHR time linked to burnout?

Observational research has associated more after-hours use with emotional exhaustion. These studies do not prove that EHR time alone causes burnout.

Does inbox work count as after-hours EHR time?

It can. Inbox work counts when it occurs inside the study or vendor's after-hours window. Inbox management is one part of total EHR work.

Can a medical virtual assistant reduce after-hours EHR time?

Administrative support can reduce defined clerical work when routing, access, training, and supervision are sound. Evidence on virtual scribes has found lower pajama time in some settings, but results depend on workflow and study design.

Methodology and sources

We prioritized studies that used EHR event logs, vendor measures, or a defined comparison with survey results. We retained daily, weekly, per-visit, per-patient, and per-eight-hour denominators. We did not calculate a pooled estimate.

Main references include the international EHR comparison, national specialty and documentation study, primary care inbox duration study, after-hours use and exhaustion study, and systematic review of EHR-related well-being.