Moonrise is when the Moon’s apparent upper edge comes above the horizon; moonset is when it goes below. Earth’s rotation makes the Moon appear to cross the sky, while its orbit shifts the times of those crossings from day to day. Either event can happen in daylight or at night.
What do moonrise and moonset mean?
Moonrise and moonset are opposite horizon crossings: the Moon appears to rise above the horizon or to descend below it. For published rise and set times, the reference is conventionally the Moon’s apparent upper edge, or upper limb—not its center. The U.S. Naval Observatory defines the times as when that upper limb is on the astronomical horizon (USNO rise and set definitions).
This distinction matters because the Moon is a disk, not a point. Almanac times use a calculation convention intended to approximate when the upper edge appears tangent to a level, unobstructed horizon under average atmospheric conditions. They are not simply the instant the Moon’s center geometrically crosses a sharp horizon. The U.S. Naval Observatory says moonrise and moonset are computed for the same circumstances as sunrise and sunset.
Why do the times change each day?
Earth’s rotation makes the Moon appear to travel across the sky and pass an observer’s horizon. But the Moon is also moving in its orbit around Earth. By the time Earth has completed a rotation, the Moon has shifted position, so Earth must turn a little farther before the Moon returns to the same apparent place in the sky.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
NASA Science says the Moon rises, on average, about 50 minutes later each day during its month-long cycle (NASA Science: Moon FAQ). That is an average, not a fixed daily adjustment: the actual change depends on the date and location.
Can the Moon rise or set during the day?
Yes. Moonrise and moonset can occur at any time, and the Moon can be visible in daylight. It may be harder to spot against a bright sky, but daylight does not mean the Moon has disappeared. NASA’s Moon FAQ explains that a full Moon rises around sunset, while a new Moon is up all day (NASA Science: Moon FAQ). These are useful phase examples, not exact times that apply identically at every location.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Why might the listed time differ from what I see?
Published times assume a level, unobstructed horizon and standard or average atmospheric refraction. The real horizon may be blocked by terrain or buildings, and atmospheric refraction near the horizon varies. The U.S. Naval Observatory notes that even under ideal conditions a calculated time can differ by a minute or more; local topography and observer height can have a larger effect. A ridge may delay the visible rise or make the Moon appear to set earlier than it would against an unobstructed horizon.
These differences can be especially pronounced at high latitudes, where the Moon crosses the horizon at a shallow angle. Depending on the place and date, a moonrise or moonset may not occur. For a useful prediction, check a calendar or almanac for your location and date, and treat its time as an estimate for the conventional horizon rather than a guarantee of what a specific viewing spot will show. See the U.S. Naval Observatory’s explanation of rise and set calculations.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsRank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
At a glance
| Term | What happens | Conventional reference |
|---|---|---|
| Moonrise | The Moon appears to come above the horizon. | The apparent upper limb reaches the astronomical horizon. |
| Moonset | The Moon appears to descend below the horizon. | The apparent upper limb reaches the astronomical horizon as it sets. |
Geoscience Australia describes moonrise in the eastern sky and moonset in the western sky under ideal meteorological conditions and standard refraction (Geoscience Australia: astronomical calculations).
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
