Calendar Heatmap

Meeting Hours Calendar

Daily meeting hours tracked in neon coral tones showing time in calls.

Output
Meeting Hours Calendar
Python
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import LinearSegmentedColormap
import matplotlib.patches as mpatches

np.random.seed(123)

days = 365
meetings = np.random.exponential(2, days)
meetings = np.clip(meetings, 0, 8)
for i in range(days):
    if i % 7 >= 5:
        meetings[i] = 0

weeks = 53
data = np.zeros((7, weeks))
for i, val in enumerate(meetings):
    week = i // 7
    day = i % 7
    if week < weeks:
        data[day, week] = val

# CLAUDE.md Neon Coral palette
colors_neon = ['#ffffff', '#fce0ea', '#f77da4', '#F5276C']
cmap = LinearSegmentedColormap.from_list('neon_coral', colors_neon, N=256)

fig, ax = plt.subplots(figsize=(16, 4), facecolor='#ffffff')
ax.set_facecolor('#ffffff')

im = ax.imshow(data, cmap=cmap, aspect='auto', vmin=0, vmax=8)

ax.set_yticks(range(7))
ax.set_yticklabels(['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'], fontsize=9, color='#374151')
ax.set_xticks(range(0, 52, 4))
ax.set_xticklabels(['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec', ''], 
                   fontsize=9, color='#374151')

ax.set_title('Meeting Hours - Time in Calls', fontsize=16, color='#1f2937', fontweight='bold', pad=15)

for i in range(8):
    ax.axhline(y=i-0.5, color='#e5e7eb', linewidth=0.5)
for i in range(weeks+1):
    ax.axvline(x=i-0.5, color='#e5e7eb', linewidth=0.5)

ax.tick_params(colors='#374151', length=0)
for spine in ax.spines.values():
    spine.set_visible(False)

legend_elements = [mpatches.Patch(facecolor=c, label=l, edgecolor='#d1d5db') 
                   for c, l in zip(colors_neon, ['0h', '1-2h', '3-5h', '6-8h'])]
ax.legend(handles=legend_elements, loc='upper left', bbox_to_anchor=(0, -0.15), ncol=4, 
          fontsize=8, facecolor='#f9fafb', edgecolor='#d1d5db', labelcolor='#374151', title='Hours',
          title_fontsize=9)

total = np.sum(meetings)
ax.annotate(f'{total:.0f} hours in meetings', xy=(0.98, 1.1), xycoords='axes fraction',
            fontsize=11, color='#F5276C', ha='right', fontweight='bold')

plt.tight_layout()
plt.subplots_adjust(bottom=0.25)
plt.show()
Library

Matplotlib

Category

Time Series

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