This Calendar facilitates the Indian Holiday list. It shows holidays according to the Hindu calendar. It shows Monthly Indian Festivals holidays of all different religions (Hindu, Muslim, Sikh, Islam, and Christian). This calendar also mentions Indian Government Holidays and Indian Festivals throughout the year. Indian Holidays Calendar for April, 2028 Indian Holidays and Hindu Festival Calendar for Varanasi, Uttar Pradesh, India is as mentioned below:

Festivals 2028


Festivals in January 2028

1 january 2028
(Saturday)
English New Year
2 january 2028
(Sunday)
Skanda Sashti
4 january 2028
(Tuesday)
Guru Gobind Singh Jayanti
5 january 2028
(Wednesday)
Masik Durgashtami, Shakambhari Utsavarambha
8 january 2028
(Saturday)
Pausha Putrada Ekadashi, Tailang Swami Jayanti, Masik Karthigai, Vaikuntha Ekadashi
9 january 2028
(Sunday)
Pradosh Vrat, Rohini Vrat
11 january 2028
(Tuesday)
Purnima Upavas, Arudra Darshan
12 january 2028
(Wednesday)
Paush Purnima, Shakambhari Purnima, Chandra Grahan
14 january 2028
(Friday)
Lohri
15 january 2028
(Saturday)
Sankashti Chaturthi, Sakat Chauth, Pongal, Makar Sankranti
16 january 2028
(Sunday)
Magh Bihu
18 january 2028
(Tuesday)
Swami Vivekananda Jayanti, Kalashtami
22 january 2028
(Saturday)
Shattila Ekadashi
23 january 2028
(Sunday)
Pradosh Vrat, Subhas Chandra Bose Jayanti
24 january 2028
(Monday)
Masik Shivaratri
26 january 2028
(Wednesday)
Magha Amavasya, Mauni Amavas, Surya Grahan, Thai Amavasai, Republic Day
27 january 2028
(Thursday)
Gupta Navratri Begins
28 january 2028
(Friday)
Chandra Darshan
30 january 2028
(Sunday)
Vinayaka Chaturthi, Ganesha Jayanti
31 january 2028
(Monday)
Vasant Panchami

Festivals in February 2028

1 february 2028
(Tuesday)
Skanda Sashti
3 february 2028
(Thursday)
Ratha Saptami, Narmada Jayanti
4 february 2028
(Friday)
Bhishma Ashtami, Masik Durgashtami, Masik Karthigai
6 february 2028
(Sunday)
Jaya Ekadashi, Rohini Vrat
7 february 2028
(Monday)
Gauna Jaya Ekadashi, Vaishnava Jaya Ekadashi
8 february 2028
(Tuesday)
Pradosh Vrat
9 february 2028
(Wednesday)
Thai Pusam
10 february 2028
(Thursday)
Magha Purnima, Purnima Upavas, Guru Ravidas Jayanti
13 february 2028
(Sunday)
Sankashti Chaturthi, Kumbha Sankranti
15 february 2028
(Tuesday)
Yashoda Jayanti
16 february 2028
(Wednesday)
Shabari Jayanti
17 february 2028
(Thursday)
Janaki Jayanti, Kalashtami
20 february 2028
(Sunday)
Vijaya Ekadashi
21 february 2028
(Monday)
Vaishnava Vijaya Ekadashi
22 february 2028
(Tuesday)
Pradosh Vrat
23 february 2028
(Wednesday)
Maha Shivaratri
25 february 2028
(Friday)
Phalguna Amavasya
26 february 2028
(Saturday)
Chandra Darshan
27 february 2028
(Sunday)
Phulera Dooj, Ramakrishna Jayanti
29 february 2028
(Tuesday)
Vinayaka Chaturthi

Festivals in March 2028

2 march 2028
(Thursday)
Skanda Sashti
3 march 2028
(Friday)
Masik Karthigai
4 march 2028
(Saturday)
Masik Durgashtami, Rohini Vrat
7 march 2028
(Tuesday)
Amalaki Ekadashi
8 march 2028
(Wednesday)
Pradosh Vrat
10 march 2028
(Friday)
Chhoti Holi, Holika Dahan, Vasanta Purnima, Purnima Upavas, Phalguna Purnima, Lakshmi Jayanti, Chaitanya Mahaprabhu Jayanti, Masi Magam, Attukal Pongala
11 march 2028
(Saturday)
Holi
12 march 2028
(Sunday)
Bhai Dooj, Bhratri Dwitiya
13 march 2028
(Monday)
Shivaji Jayanti, Sankashti Chaturthi
14 march 2028
(Tuesday)
Meena Sankranti, Karadaiyan Nombu
15 march 2028
(Wednesday)
Ranga Panchami
16 march 2028
(Thursday)
Sheetala Saptami
17 march 2028
(Friday)
Basoda, Sheetala Ashtami, Kalashtami
20 march 2028
(Monday)
Vernal Equinox
21 march 2028
(Tuesday)
Papmochani Ekadashi
23 march 2028
(Thursday)
Pradosh Vrat
24 march 2028
(Friday)
Masik Shivaratri
26 march 2028
(Sunday)
Chaitra Amavasya
27 march 2028
(Monday)
Chandra Darshan, Chaitra Navratri, Gudi Padwa, Ugadi
28 march 2028
(Tuesday)
Jhulelal Jayanti, Matsya Jayanti
29 march 2028
(Wednesday)
Gauri Puja, Gangaur
30 march 2028
(Thursday)
Vinayaka Chaturthi, Lakshmi Panchami
31 march 2028
(Friday)
Skanda Sashti, Rohini Vrat

Festivals in April 2028

1 april 2028
(Saturday)
Yamuna Chhath
3 april 2028
(Monday)
Masik Durgashtami
4 april 2028
(Tuesday)
Rama Navami
5 april 2028
(Wednesday)
Kamada Ekadashi
6 april 2028
(Thursday)
Gauna Kamada Ekadashi, Vaishnava Kamada Ekadashi
7 april 2028
(Friday)
Pradosh Vrat, Mahavir Swami Jayanti, Good Friday
8 april 2028
(Saturday)
Panguni Uthiram
9 april 2028
(Sunday)
Hanuman Jayanti, Chaitra Purnima, Purnima Upavas, Easter
12 april 2028
(Wednesday)
Sankashti Chaturthi
13 april 2028
(Thursday)
Solar New Year, Mesha Sankranti, Baisakhi
14 april 2028
(Friday)
Puthandu, Vishu Kani, Pohela Boishakh, Ambedkar Jayanti
16 april 2028
(Sunday)
Kalashtami
20 april 2028
(Thursday)
Varuthini Ekadashi, Vallabhacharya Jayanti
22 april 2028
(Saturday)
Pradosh Vrat, Shani Trayodashi, Masik Shivaratri
24 april 2028
(Monday)
Vaishakha Amavasya, Somvati Amavas
26 april 2028
(Wednesday)
Chandra Darshan
27 april 2028
(Thursday)
Parashurama Jayanti, Akshaya Tritiya
28 april 2028
(Friday)
Vinayaka Chaturthi, Rohini Vrat
29 april 2028
(Saturday)
Shankaracharya Jayanti, Surdas Jayanti
30 april 2028
(Sunday)
Skanda Sashti, Ramanuja Jayanti

Festivals in May 2028

1 may 2028
(Monday)
Ganga Saptami
2 may 2028
(Tuesday)
Masik Durgashtami
3 may 2028
(Wednesday)
Sita Navami
4 may 2028
(Thursday)
Thrissur Pooram
5 may 2028
(Friday)
Mohini Ekadashi, Eid al-Adha, Bakrid
6 may 2028
(Saturday)
Pradosh Vrat, Shani Trayodashi
7 may 2028
(Sunday)
Narasimha Jayanti, Rabindranath Tagore Jayanti
8 may 2028
(Monday)
Vaishakha Purnima, Kurma Jayanti, Buddha Purnima, Purnima Upavas, Chitra Pournami, Tagore Jayanti *Bengal
9 may 2028
(Tuesday)
Narada Jayanti
11 may 2028
(Thursday)
Sankashti Chaturthi
14 may 2028
(Sunday)
Vrishabha Sankranti
16 may 2028
(Tuesday)
Kalashtami
19 may 2028
(Friday)
Hanuman Jayanti *Telugu
20 may 2028
(Saturday)
Apara Ekadashi
21 may 2028
(Sunday)
Pradosh Vrat
22 may 2028
(Monday)
Masik Shivaratri
24 may 2028
(Wednesday)
Jyeshtha Amavasya, Shani Jayanti, Vat Savitri Vrat
25 may 2028
(Thursday)
Chandra Darshan, Rohini Vrat
27 may 2028
(Saturday)
Maharana Pratap Jayanti, Vinayaka Chaturthi
29 may 2028
(Monday)
Skanda Sashti
31 may 2028
(Wednesday)
Masik Durgashtami

Festivals in June 2028

1 june 2028
(Thursday)
Mahesh Navami
2 june 2028
(Friday)
Ganga Dussehra
3 june 2028
(Saturday)
Gayatri Jayanti, Nirjala Ekadashi
4 june 2028
(Sunday)
Pradosh Vrat
5 june 2028
(Monday)
Vaikasi Visakam
6 june 2028
(Tuesday)
Vat Purnima Vrat, Purnima Upavas
7 june 2028
(Wednesday)
Jyeshtha Purnima, Kabirdas Jayanti
10 june 2028
(Saturday)
Sankashti Chaturthi
15 june 2028
(Thursday)
Kalashtami, Mithuna Sankranti
18 june 2028
(Sunday)
Yogini Ekadashi
20 june 2028
(Tuesday)
Pradosh Vrat, Masik Karthigai
21 june 2028
(Wednesday)
Masik Shivaratri, Longest Day of Year, Rohini Vrat
22 june 2028
(Thursday)
Ashadha Amavasya
23 june 2028
(Friday)
Gupta Navratri Begins
24 june 2028
(Saturday)
Chandra Darshan, Jagannath Rathyatra
26 june 2028
(Monday)
Vinayaka Chaturthi
27 june 2028
(Tuesday)
Skanda Sashti
29 june 2028
(Thursday)
Masik Durgashtami

Festivals in July 2028

2 july 2028
(Sunday)
Devshayani Ekadashi, Gauri Vrat Begins *Gujarat
4 july 2028
(Tuesday)
Pradosh Vrat, Jayaparvati Vrat Begins
6 july 2028
(Thursday)
Kokila Vrat *Gujarat, Vyasa Puja, Ashadha Purnima, Guru Purnima, Gauri Vrat Ends *Gujarat, Purnima Upavas, Chandra Grahan
9 july 2028
(Sunday)
Jayaparvati Vrat Ends
10 july 2028
(Monday)
Sankashti Chaturthi, Shravan Somwar Vrat *North
11 july 2028
(Tuesday)
Mangala Gauri Vrat *North
14 july 2028
(Friday)
Kalashtami
16 july 2028
(Sunday)
Karka Sankranti
17 july 2028
(Monday)
Shravan Somwar Vrat *North, Masik Karthigai
18 july 2028
(Tuesday)
Kamika Ekadashi, Mangala Gauri Vrat *North
19 july 2028
(Wednesday)
Pradosh Vrat, Rohini Vrat
20 july 2028
(Thursday)
Sawan Shivaratri
21 july 2028
(Friday)
Hariyali Amavasya, Aadi Amavasai
22 july 2028
(Saturday)
Shravana Amavasya, Surya Grahan
23 july 2028
(Sunday)
Chandra Darshan
24 july 2028
(Monday)
Hariyali Teej, Shravan Somwar Vrat
25 july 2028
(Tuesday)
Vinayaka Chaturthi, Mangala Gauri Vrat
26 july 2028
(Wednesday)
Nag Panchami, Kalki Jayanti, Skanda Sashti
28 july 2028
(Friday)
Tulsidas Jayanti
29 july 2028
(Saturday)
Masik Durgashtami
31 july 2028
(Monday)
Shravan Somwar Vrat

Festivals in August 2028

1 august 2028
(Tuesday)
Shravana Putrada Ekadashi, Mangala Gauri Vrat
2 august 2028
(Wednesday)
Pradosh Vrat, Aadi Perukku
4 august 2028
(Friday)
Varalakshmi Vrat, Purnima Upavas, Hayagriva Jayanti
5 august 2028
(Saturday)
Shravana Purnima, Rakhi, Raksha Bandhan, Gayatri Jayanti, Narali Purnima, Rigveda Upakarma, Yajurveda Upakarma, Sanskrit Diwas
6 august 2028
(Sunday)
Gayathri Japam
8 august 2028
(Tuesday)
Kajari Teej, Sankashti Chaturthi, Sangada Hara Chathurti *Tamil
9 august 2028
(Wednesday)
Bol Choth *Gujarat
10 august 2028
(Thursday)
Nag Pancham *Gujarat
11 august 2028
(Friday)
Balarama Jayanti, Randhan Chhath *Gujarat
12 august 2028
(Saturday)
Shitala Satam *Gujarat
13 august 2028
(Sunday)
Krishna Janmashtami, Kalashtami, Masik Karthigai
14 august 2028
(Monday)
Dahi Handi
15 august 2028
(Tuesday)
Independence Day, Rohini Vrat
16 august 2028
(Wednesday)
Aja Ekadashi, Simha Sankranti
17 august 2028
(Thursday)
Vaishnava Aja Ekadashi, Malayalam New Year
18 august 2028
(Friday)
Pradosh Vrat, Masik Shivaratri
20 august 2028
(Sunday)
Bhadrapada Amavasya
22 august 2028
(Tuesday)
Chandra Darshan, Varaha Jayanti, Hartalika Teej, Gowri Habba
23 august 2028
(Wednesday)
Samaveda Upakarma, Ganesh Chaturthi
24 august 2028
(Thursday)
Rishi Panchami
25 august 2028
(Friday)
Skanda Sashti
27 august 2028
(Sunday)
Gauri Avahana, Radha Ashtami, Masik Durgashtami, Mahalakshmi Vrat Begins, Durva Ashtami
28 august 2028
(Monday)
Gauri Puja
29 august 2028
(Tuesday)
Gauri Visarjan
30 august 2028
(Wednesday)
Parsva Ekadashi
31 august 2028
(Thursday)
Vamana Jayanti

Festivals in September 2028

1 september 2028
(Friday)
Pradosh Vrat, Onam
2 september 2028
(Saturday)
Anant Chaturdashi, Ganesh Visarjan
3 september 2028
(Sunday)
Purnima Upavas, Purnima Shraddha
4 september 2028
(Monday)
Pratipada Shraddha
5 september 2028
(Tuesday)
Dwitiya Shraddha
6 september 2028
(Wednesday)
Tritiya Shraddha
7 september 2028
(Thursday)
Chaturthi Shraddha, Sankashti Chaturthi
9 september 2028
(Saturday)
Maha Bharani, Panchami Shraddha
10 september 2028
(Sunday)
Shashthi Shraddha, Masik Karthigai
11 september 2028
(Monday)
Saptami Shraddha, Kalashtami, Mahalakshmi Vrat Ends, Ashtami Rohini, Rohini Vrat
12 september 2028
(Tuesday)
Ashtami Shraddha, Jivitputrika Vrat
13 september 2028
(Wednesday)
Navami Shraddha
14 september 2028
(Thursday)
Dashami Shraddha
15 september 2028
(Friday)
Indira Ekadashi, Ekadashi Shraddha, Dwadashi Shraddha
16 september 2028
(Saturday)
Trayodashi Shraddha, Pradosh Vrat, Shani Trayodashi, Kanya Sankranti, Vishwakarma Puja
17 september 2028
(Sunday)
Magha Shraddha, Chaturdashi Shraddha, Masik Shivaratri
18 september 2028
(Monday)
Ashwin Amavasya, Sarva Pitru Amavasya
19 september 2028
(Tuesday)
Navratri Begins, Ghatasthapana
20 september 2028
(Wednesday)
Chandra Darshan
21 september 2028
(Thursday)
Vinayaka Chaturthi
22 september 2028
(Friday)
Lalita Panchami, Autumnal Equinox
23 september 2028
(Saturday)
Bilva Nimantran, Skanda Sashti, Kalparambha, Akal Bodhon
24 september 2028
(Sunday)
Navpatrika Puja
25 september 2028
(Monday)
Saraswati Avahan
26 september 2028
(Tuesday)
Saraswati Puja, Durga Ashtami, Sandhi Puja, Maha Navami
27 september 2028
(Wednesday)
Saraswati Balidan, Durga Balidan, Ayudha Puja, Saraswati Poojai, Bengal Maha Navami, Dussehra, Vijayadashami
28 september 2028
(Thursday)
Saraswati Visarjan, Durga Visarjan, Bengal Vijayadashami, Mysore Dasara, Vidyarambham Day, Madhvacharya Jayanti
29 september 2028
(Friday)
Papankusha Ekadashi
30 september 2028
(Saturday)
Pradosh Vrat, Shani Trayodashi

Festivals in October 2028

2 october 2028
(Monday)
Kojagara Puja, Sharad Purnima, Gandhi Jayanti
3 october 2028
(Tuesday)
Ashwin Purnima, Purnima Upavas, Valmiki Jayanti, Meerabai Jayanti
6 october 2028
(Friday)
Atla Tadde
7 october 2028
(Saturday)
Karwa Chauth, Sankashti Chaturthi, Masik Karthigai
9 october 2028
(Monday)
Rohini Vrat
11 october 2028
(Wednesday)
Ahoi Ashtami, Radha Kunda Snan, Kalashtami
14 october 2028
(Saturday)
Rama Ekadashi
15 october 2028
(Sunday)
Govatsa Dwadashi, Dhan Teras, Yama Deepam, Pradosh Vrat
16 october 2028
(Monday)
Kali Chaudas, Hanuman Puja, Masik Shivaratri
17 october 2028
(Tuesday)
Narak Chaturdashi, Tamil Deepavali, Diwali, Lakshmi Puja, Kedar Gauri Vrat, Chopda Puja, Sharda Puja, Kali Puja, Tula Sankranti
18 october 2028
(Wednesday)
Kartik Amavasya, Gowardhan Puja, Annakut, Bali Pratipada, Dyuta Krida
19 october 2028
(Thursday)
Chandra Darshan, Bhaiya Dooj, Yama Dwitiya
21 october 2028
(Saturday)
Nagula Chavithi *Telugu, Vinayaka Chaturthi
22 october 2028
(Sunday)
Labh Panchami
23 october 2028
(Monday)
Chhath Puja, Soora Samharam
25 october 2028
(Wednesday)
Gopashtami, Masik Durgashtami
26 october 2028
(Thursday)
Akshaya Navami, Jagaddhatri Puja
27 october 2028
(Friday)
Kansa Vadh
28 october 2028
(Saturday)
Devutthana Ekadashi
29 october 2028
(Sunday)
Vaishnava Utthana Ekadashi, Tulasi Vivah
30 october 2028
(Monday)
Pradosh Vrat
31 october 2028
(Tuesday)
Vaikuntha Chaturdashi

Festivals in November 2028

1 november 2028
(Wednesday)
Dev Diwali, Purnima Upavas
2 november 2028
(Thursday)
Kartik Purnima, Guru Nanak Jayanti
3 november 2028
(Friday)
Masik Karthigai
5 november 2028
(Sunday)
Sankashti Chaturthi, Rohini Vrat
9 november 2028
(Thursday)
Kalabhairav Jayanti
12 november 2028
(Sunday)
Utpanna Ekadashi
13 november 2028
(Monday)
Gauna Utpanna Ekadashi, Vaishnava Utpanna Ekadashi
14 november 2028
(Tuesday)
Pradosh Vrat, Nehru Jayanti
15 november 2028
(Wednesday)
Masik Shivaratri
16 november 2028
(Thursday)
Margashirsha Amavasya, Vrischika Sankranti, Mandalakala Begins
18 november 2028
(Saturday)
Chandra Darshan
20 november 2028
(Monday)
Vinayaka Chaturthi
21 november 2028
(Tuesday)
Vivah Panchami, Subrahmanya Sashti, Champa Shashthi
24 november 2028
(Friday)
Masik Durgashtami
27 november 2028
(Monday)
Mokshada Ekadashi, Gita Jayanti, Guruvayur Ekadashi
29 november 2028
(Wednesday)
Pradosh Vrat, Hanuman Jayanti *Kannada

Festivals in December 2028

1 december 2028
(Friday)
Dattatreya Jayanti, Purnima Upavas, Annapurna Jayanti, Karthigai Deepam
2 december 2028
(Saturday)
Rohini Vrat
5 december 2028
(Tuesday)
Sankashti Chaturthi
9 december 2028
(Saturday)
Kalashtami
12 december 2028
(Tuesday)
Saphala Ekadashi
13 december 2028
(Wednesday)
Pradosh Vrat
14 december 2028
(Thursday)
Masik Shivaratri
15 december 2028
(Friday)
Dhanu Sankranti
16 december 2028
(Saturday)
Paush Amavasya, Hanumath Jayanthi
17 december 2028
(Sunday)
Chandra Darshan
19 december 2028
(Tuesday)
Vinayaka Chaturthi
21 december 2028
(Thursday)
Skanda Sashti, Shortest Day of Year
23 december 2028
(Saturday)
Guru Gobind Singh Jayanti
24 december 2028
(Sunday)
Masik Durgashtami, Shakambhari Utsavarambha
25 december 2028
(Monday)
Merry Christmas
26 december 2028
(Tuesday)
Mandala Pooja
27 december 2028
(Wednesday)
Pausha Putrada Ekadashi, Tailang Swami Jayanti, Vaikuntha Ekadashi
29 december 2028
(Friday)
Pradosh Vrat, Rohini Vrat
31 december 2028
(Sunday)
Paush Purnima, Shakambhari Purnima, Chandra Grahan, Purnima Upavas, Arudra Darshan

Hindu Festival Calendar

The following Hindu Festival Calendar are shown for the date April, 2028 Indian Holidays and Hindu Festival Calendar for Varanasi, Uttar Pradesh, India

Hindu calendar is used by Hindus for important events related to their religion and festivals. The Hindu religion is the world’s 3rd oldest religion having countless followers and can be found being practiced throughout the world. Hindus have divine texts called Vedas which are highly respected in their religion. Four Vedas are Rig Veda, Atharva Veda, Yajur Veda, and Sama Veda. Hindus’ Famous and beloved scripture are Bhagavad Gita, Mahabharat, and Ramayana.

Panchang, Panchangam, Panjika, etc. are the other names of the Hindu calendar. Hindus celebrate their festivals on different dates because they depend on the action of the moon and sun. That’s why Hindus celebrate their festivals according to the Hindu calendar. Hindu Calendar is also called astrology calendar. It keeps on changing from time to time.

Vikram Samvat

It started in 57 B.C.
To mark achievement, King Vikramaditya introduced it.
This calendar is also according to the movements of Moon, so it is also a type of lunar calendar.
It also contains 12 months and 354 days to make a year.
Months are divided into two parts.
The shiny days are referred as Shuklapaksha. Days between the new moon and full moon.
The dark days are referred as Krishna Paksha. Days between the full moon and the new moon.
The month starts with Krishna Paksha.
It has 13 months after five years. This month refers to Adhik Mass.

The Solar Calendar

This is according to the movement of the Sun. Sidereal/tropical are two types of movement of the year. For example, Roman and French calendar. It is used in different states of India. Punjab, Assam, Haryana, Kerala, Bengal, Tripura, Tamil Nadu, and Orissa. It is not considered according to the number of days in a year. Below mentioned categories are the part of Indian National Calendar.

Saka Samvat

It started in 78 A.D.
To mark achievement, Saka rulers introduced it.
It is also the type of solar calendar.
It is also an official calendar adopted by the Indian Government in 1957.
It also contains 12 months and 365 days to make a year.

The Lunisolar Calendar

This calendar is according to the movement of both Sun and Moon. Sun helps to assemble year and moon helps to assemble the month of the year. This calendar is referred for Indian Hindu Festivals and Indian Holidays. It is also used in different states of India like Gujrat, Maharashtra, Uttar Pradesh, Andhra Pradesh, Madhya Pradesh, Rajasthan, Karnataka, Kashmir, and Bihar. It accumulates the yearly motion of the Sun and monthly phases of Moon. Some examples are Jews and the Babylonian calendars along with the Indian Calendars used in, Bihar Karnataka, Kashmir.

Structure of Indian calendar

Luni-solar system is based on time which consists of 365 days and twelve months. The first month refers to Chaitra and the last month refers to Phalguna. Indian new year is celebrated according to Shaka Calendar. 12 months are of Hindu festivals calendar are mentioned below:

1. Chaitra
2. Vaishakha
3. Jyeshtha
4. Ashadha
5. Shravana
6. Bhadra
7. Ashwin
8. Kartika
9. Agrahayana
10. Pausha
11. Magha
12. Phalguna

Gregorian Calendar

It is also the type of Scientific calendar.
It also contains 12 months and 364.25 days to make a year.
It is universally followed and is called the solar calendar.