Inclusion Criteria:  Have an occupation of a dayshift (i.e., occurring between 6 AM and 8 PM) remote office worker (working from home for at least 32 hours a week with a maximum of 12 hours per day) Aged 18-65 Good health [self-reported medical history] Female or male No evidence of sleep disorders [Pittsburgh Sleep Quality Index (PSQI) (1) scores >5 are excluded] No extreme chronotypes (extreme owl or lark) [reduced Horne-Östberg Morningness-Eveningness Questionnaire (MEQ) (2) scores >27 or <11 are excluded; typical bedtime between 8 PM and 2 AM] Non-smoker Not abusing alcohol [Alcohol Use Disorders Identification Test (self-report version, AUDIT) (3) scores >19 are excluded] Not experiencing depression [Center for Epidemiological Studies Depression Scale (CES-D) (4) scores >27 are excluded] Best-corrected visual acuity of 20/200 or higher Normal color vision [as per Ishihara's Tests for Colour Deficiency (5)] No current or planned use of light therapy or light-altering devices (e.g., blue-blocking and/or tinted glasses and contact lenses) No planned upcoming travel during the study participation period Not pregnant  Exclusion Criteria:  -