Srimad Bhagavatam Canto 02, Chapter 10, Text 46

SB 2.10.46

ayam tu brahmanah kalpah
savikalpa udahrtah
vidhih sadharano yatra
sargah prakrta-vaikrtah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
This process of creation and annihilation described in summary herein is the regulative principle during the duration of Brahma’s one day. It is also the regulative principle in the creation of mahat, in which the material nature is dispersed.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
There are three different types of creation, called maha-kalpa, vikalpa and kalpa. In the maha-kalpa the Lord assumes the first purusa incarnation as Karanodakasayi Visnu with all the potencies of the mahat-tattva and the sixteen principles of creative matter and instruments. The creative instruments are eleven, the ingredients are five, and all of them are products of mahat, or materialistic ego. These creations by the Lord in His feature of Karanodakasayi Visnu are called maha-kalpa. The creation of Brahma and dispersion of the material ingredients are called vikalpa, and the creation by Brahma in each day of his life is called kalpa. Therefore each day of Brahma is called a kalpa, and there are thirty kalpas in terms of Brahma’s days. This is also confirmed in the Bhagavad-gita (8.17) as follows:
 
sahasra-yuga-paryantam
 ahar yad brahmano viduh
ratrim yuga-sahasrantam
 te ’ho-ratra-vido janah
 
In the upper planetary system the duration of one complete day and night is equal to one complete year of this earth. This is accepted even by the modern scientist and attested by the astronauts. Similarly, in the region of still higher planetary systems the duration of day and night is still greater than in the heavenly planets. The four yugas are calculated in terms of the heavenly calendars and accordingly are twelve thousand years in terms of the heavenly planets. This is called a divya-yuga, and one thousand divya-yugas make one day of Brahma. The creation during the day of Brahma is called kalpa, and the creation of Brahma is called vikalpa. When vikalpas are made possible by the breathing of Maha-Visnu, this is called a maha-kalpa. There are regular and systematic cycles of these maha-kalpas, vikalpas and kalpas. In answer to Maharaja Pariksit’s question about them, Sukadeva Gosvami answered in the Prabhasa-khanda of the Skanda Purana. They are as follows:
 
prathamah sveta-kalpas ca
 dvitiyo nila-lohitah
vamadevas trtiyas tu
 tato gathantaro ’parah
 
rauravah pañcamah proktah
 sasthah prana iti smrtah
saptamo ’tha brhat-kalpah
 kandarpo ’stama ucyate
 
sadyotha navamah kalpa
 isano dasamah smrtah
dhyana ekadasah proktas
 tatha sarasvato ’parah
 
trayodasa udanas tu
 garudo ’tha caturdasah
kaurmah pañcadaso jñeyah
 paurnamasi prajapateh
 
sodaso narasimhas tu
 samadhis tu tato ’parah
agneyo visnujah saurah
 soma-kalpas tato ’parah
 
dvavimso bhavanah proktah
 supuman iti caparah
vaikunthas carstisas tadvad
 vali-kalpas tato ’parah
 
saptavimso ’tha vairajo
 gauri-kalpas tathaparah
mahesvaras tatha proktas
 tripuro yatra ghatitah
pitr-kalpas tatha cante
 yah kuhur brahmanah smrta
 
Therefore the thirty kalpas of Brahma are: (1) Sveta-kalpa, (2) Nilalohita, (3) Vamadeva, (4) Gathantara, (5) Raurava, (6) Prana, (7) Brhat-kalpa, (8) Kandarpa, (9) Sadyotha, (10) Isana, (11) Dhyana, (12) Sarasvata, (13) Udana, (14) Garuda, (15) Kaurma, (16) Narasimha, (17) Samadhi, (18) Agneya, (19) Visnuja, (20) Saura, (21) Soma-kalpa, (22) Bhavana, (23) Supuma, (24) Vaikuntha, (25) Arcisa, (26) Vali-kalpa, (27) Vairaja, (28) Gauri-kalpa, (29) Mahesvara, (30) Paitr-kalpa.
 
These are Brahma’s days only, and he has to live months and years up to one hundred, so we can just imagine how many creations there are in kalpas only. Then again there are vikalpas, which are generated by the breathing of Maha-Visnu, as stated in the Brahma-samhita (yasyaika-nisvasita-kalam athavalambya jivanti loma-vilaja jagadanda-nathah). The Brahmas live only during the breathing period of Maha-Visnu. So the exhaling and inhaling of Visnu are maha-kalpas, and all these are due to the Supreme Personality of Godhead, for no one else is the master of all creations.
 
Srimad Bhagavatam Canto 02, Chapter 10, Text 45
Srimad Bhagavatam Canto 02, Chapter 10, Text 47