Landing currency day and night on same ride?
As pilots we often talk about night flying and daytime flying meaning when it is dark or light, but for logging time and for currency in the US there are specific definitions that we must pay attention to.


  FAR 1.1 General Definitions
  
  Night means the time between the end of evening civil twilight and the
  beginning of morning civil twilight, as published by the American Air
  Almanac, converted to local time.


Day is not defined in the FARs but the definition of night implies that it is the time between the beginning of morning civil twilight and the end of evening civil twilight.

The Air Almanac is published annually on CD-ROM but you can find sunset, sunrise, and civil twilight times for specific locations at the US Naval Observatory website or in ForeFlight.

The time between sunrise/sunset and twilight is 26-30 minutes depending on the time of year. Since you can easily find sunrise/sunset information in newspapers, the weather channel, etc. you can estimate twilight fairly easily.

Currency


  §61.57 (b) (1) … no person may act as pilot in command of an aircraft
  carrying passengers during the period beginning 1 hour after sunset
  and ending 1 hour before sunrise, unless within the preceding 90 days
  that person has made at least three takeoffs and three landings to a
  full stop during the period beginning 1 hour after sunset and ending 1
  hour before sunrise, and…


VFR Weather Minimums
Only Class G airspace has different minimums depending on night and day and they use the standard night definition—end of evening twilight to the beginning of morning twilight.

Aircraft Lights
Aircraft lighting is required between sunset and sunrise. 


  §91.209 During the period between sunset and sunrise no person may 1.
  operate an aircraft unless it has lighted position lights, 2. park or
  move an aircraft in an area of an airport where night operations are
  being conducted unless it is clearly illuminated, has position lights,
  or is in an area marked by obstruction lights.


Aeronautical Experience Requirement
In order to obtain a private pilot certificate night training is required. The commercial pilot certificate required solo night flights. In these cases the standard night definition—end of evening twilight to the beginning of morning twilight—applies.

Special VFR
AIM 4-4-6 g. Special VFR operations are prohibited between sunset and sunrise unless the pilot is instrument rated and the aircraft equipped for IFR flight.

Logging Night Flying Time
Logging of night flight should be made in accordance with Part 1 definitions, which is from the end of evening civil twilight to the start of morning civil twilight. This differs from the definition used for night currency.

Summary

• Position lights – sunset to sunrise

• Special VFR – except sunset to sunrise unless instrument rated

• Carry Passengers – 1 hour after sunset to 1 hour before sunrise

• Everything else – evening twilight to morning twilight

The answer to your question.

Now that we have that out of the way, we can look at the requirements for carrying passengers.


  §61.57   Recent flight experience: Pilot in command. (a) General
  experience. (1) Except as provided in paragraph (e) of this section,
  no person may act as a pilot in command of an aircraft carrying
  passengers or of an aircraft certificated for more than one pilot
  flight crewmember unless that person has made at least three takeoffs
  and three landings within the preceding 90 days, and—
  
  (i) The person acted as the sole manipulator of the flight controls;
  and
  
  (ii) The required takeoffs and landings were performed in an aircraft
  of the same category, class, and type (if a type rating is required),
  and, if the aircraft to be flown is an airplane with a tailwheel, the
  takeoffs and landings must have been made to a full stop in an
  airplane with a tailwheel.
  
  (2) For the purpose of meeting the requirements of paragraph (a)(1) of
  this section, a person may act as a pilot in command of an aircraft
  under day VFR or day IFR, provided no persons or property are carried
  on board the aircraft, other than those necessary for the conduct of
  the flight.


You can remain current for carrying passengers in the daytime by making three takeofffs and landins either with or without passengers. If you are not current, you may regain currency as long as you don’t have passengers.

A separate regulation governs night currency—where night is 1 hour after sunset until 1 hour before sunrise.


  §61.57   Recent flight experience: Pilot in command.** b) Night
  takeoff and landing experience. (1) Except as provided in paragraph
  (e) of this section, no person may act as pilot in command of an
  aircraft carrying passengers during the period beginning 1 hour after
  sunset and ending 1 hour before sunrise, unless within the preceding
  90 days that person has made at least three takeoffs and three
  landings to a full stop during the period beginning 1 hour after
  sunset and ending 1 hour before sunrise, and—


If you are night current then you have satisfied §61.57 (1) and so you are also day current.