“Federal law does not require lunch or coffee breaks. However, when employers do offer short breaks (usually lasting about 5 to 20 minutes), federal law considers the breaks as compensable work hours that would be included in the sum of hours worked during the work week and considered in determining if overtime was worked. Unauthorized extensions of authorized work breaks need not be counted as hours worked when the employer has expressly and unambiguously communicated to the employee that the authorized break may only last for a specific length of time, that any extension of the break is contrary to the employer's rules, and any extension of the break will be punished.” — https://www.dol.gov/general/topic/workhours/breaks